New Newton Mechanics Taking Law of Conservation of Energy as Unique Source Law

Size: px
Start display at page:

Download "New Newton Mechanics Taking Law of Conservation of Energy as Unique Source Law"

Transcription

1 Science Jonal of hysics ISSN: Atho(s 5. CC Attibtion 3. License. Reseach Aticle blished By Science Jonal blication Intenational Open Access blishe New Newton Mechanics Taking Law of Conseation of Enegy as Uniqe Soce Law Yha CNOOC Reseach Institte Accepted on Mach 7, 5 Abstact: Accoding to the pinciple of the niqeness of tth, this pape pesents the New Newton Mechanics (NNM taking law of conseation of enegy as niqe soce law. Eamples show that in some cases othe laws may be contadicted with the law of conseation of enegy. The oiginal Newton's thee laws and the law of gaity, in pinciple can be deied by the law of conseation of enegy. Thogh the eample of fee falling body, this pape deies the oiginal Newton's second law and the oiginal law of gaity by sing the law of conseation of enegy; and thogh the eample of a small ball olls along the inclined plane (belonging to the poblem cannot be soled by geneal elatiity that a body is foced to moe in flat space, deies impoed Newton's second law and impoed law of gaity by sing law of conseation of enegy. Whethe o not othe conseation laws (sch as the law of conseation of momentm and the law of conseation of angla momentm can be tilized, shold be tested by law of conseation of enegy. When the oiginal Newton's second law is not coect, then the laws of conseation of momentm and angla momentm ae no longe coect; theefoe the geneal foms of impoed law of conseation of momentm and impoed law of conseation of angla momentm ae pesented. In the cases that law of conseation of enegy cannot be sed effectiely, New Newton Mechanics will not eclde that accoding to othe theoies o accate epeiments to deie the laws o fomlas to sole some specific poblems. o eample, with the help of the eslt of geneal elatiity, the impoed Newton's fomla of niesal gaitation can be deied, which can be sed to sole the poblem of adance of planetay peihelion and the poblem of deflection of photon aond the Sn. Again, accoding to accate epeimental eslt, the synthesized gaitational fomla (inclding the effects of othe celestial bodies and snlight pesse fo the poblem of deflection of photon aond the Sn is pesented. Unlike the oiginal Newton Mechanics, in New Newton Mechanics, fo diffeent poblems, may hae diffeent laws of motion, diffeent fomlas of gaity, as well as diffeent epessions of enegy. o eample, fo the poblem of a small ball olls along the inclined plane, and the poblem of adance of planetay peihelion, the two fomlas of gaity ae completely diffeent. Keywods: Uniqeness of tth, law of conseation of enegy, niqe soce law, New Newton Mechanics (NNM Intodction One of the deelopment tends of natal science is sing fewe laws to sole inceasing poblems. In this pocess, some laws will play the inceasingly geat oles; while othes will play the smalle oles, o een disappea fom the anks of laws. Now we discss the law of conseation of enegy. Its main contents ae as follows: In a closed system, the total enegy of this system emains nchanged. Becase the law of conseation of enegy is the most impotant one in natal sciences, it shold play an inceasingly geat ole. o this eason and accoding to the pinciple of the niqeness of tth, this pape pesents the New Newton Mechanics (NNM taking law of conseation of enegy as niqe soce law. In the aea of Newton Mechanics, thee shold be one tth only. Othe so-called tth, eithe it can be deied by the niqe tth, o we can poe that in cetain cases it is not te. As well-known, when Newton fonded the classical mechanics, fo laws wee poposed, they wee Newton's thee laws and the law of gaity. If the law of conseation of enegy is choosing as the niqe soce law, that in pinciple, all the Newton's fo laws can be deied accoding to the law of conseation of enegy; afte stdying caeflly we fond that this may indeed be the eal case. In addition, in the aeas sch as physics, mechanics, engineeing and so on, thee ae thee ey impotant laws: the law of conseation of enegy, the law of conseation of momentm and the law of conseation of angla momentm. How to Cite this Aticle: Yha, "New Newton Mechanics Taking Law of Conseation of Enegy as Uniqe Soce Law", Science Jonal of hysics, Volme 5, Aticle I sjp-3, ages, 5, doi:.737/sjp/3

2 S c i e n c e J o n a l o f h y s i c s ( I S S N : a g e If we beliee that the law of conseation of enegy is the tth, then fo the law of conseation of momentm and the law of conseation of angla momentm, eithe they can be deied by the law of conseation of enegy, o we can poe that in cetain cases they ae not te. We beliee that the te sitation is the latte, namely, the law of conseation of momentm and the law of conseation of angla momentm ae not te in some cases (o thei eslts ae contadicted to the law of conseation of enegy. Of cose, we can also find that in some cases, these two laws still can be sed. Taking the eample that a man walks along the ca located on the hoizontal smooth ail, we can see that at pesent in the aea of Newton mechanics, some people do not notice the case of the contadiction between the law of conseation of enegy and the law of conseation of momentm. Taking Law of Conseation of Enegy as Uniqe Soce Law. eiing Oiginal Newton's Second Law and Oiginal Law of Gaity.. eiing Oiginal Newton's Second Law by Using Law of Conseation of Enegy In this section, only Newton's second law can be deied, bt we hae to apply the law of gaity at the same time, so we pesent the geneal foms of Newton's second law and the law of gaity with ndetemined constants fistly. Assming that fo the law of gaity, the elated eponent is nknown, and we only know the fom of this fomla is as follows whee: is an ndetemined constant, in the net section we will deie that its ale is eqal to. Similaly, assming that fo Newton's second law, the elated eponent is also nknown, and we only know the fom of this fomla is as follows ' ma whee: is an ndetemined constant, in this section we will deie that its ale is eqal to. As shown in ige, spposing that cicle O denotes the Eath, M denotes its mass; m denotes the mass of the small ball (teated as a mass point, A O is a plmb line, and coodinate y is paallel to AO. The length of AC is eqal to H, and O C eqals the adis R of the Eath. We also assme that it does not take into accont the motion of the Eath and only consideing the fee falling of the small ball in the gaitational field of the Eath (fom point A to point C. ige A small ball fee falls in the gaitational field of the Eath o this eample, the ale of which is the sqae of the elocity fo the small ball located at point will be inestigated. To distingish the qantities calclated by diffeent methods, we denote the ale gien by the law of gaity How to Cite this Aticle: Yha, "New Newton Mechanics Taking Law of Conseation of Enegy as Uniqe Soce Law", Science Jonal of hysics, Volme 5, Aticle I sjp-3, ages, 5, doi:.737/sjp/3

3 S c i e n c e J o n a l o f h y s i c s ( I S S N : a g e 3 and Newton s second law as,while ' denotes the ale gien by the law of conseation of enegy. Now we calclate the elated qantities accoding to the law of conseation of enegy. om the law of gaity contained ndetemined constant, the potential enegy of the small ball located at point is as follows V ( O ' Accoding to the law of conseation of enegy, we can get ( A And theefoe GM [ m' ( R H ( ' O ' Now we calclate the elated qantities accoding to the law of gaity and Newton s second law. o the small ball located at any point, we hae We also hae Theefoe d/ dt a dy dt d ady Accoding to the law of gaity contained ndetemined constant, along the plmb diection, the foce acted on the small ball is as follows a om the Newton's second law contained ndetemined constant, it gies a a ( m Then we hae / ' GM d { ( R H y GM ( } / ' dy / ' o the two sides of this epession, we n the integal opeation fom A to, it gies Let / ' ( GM ( GM / / ' ( GM [ ( / ' y p ( R H y / ' dy ' { [( R H y / ' ( / ' ( R H ( / ' ', then we shold hae: / ' ( / ' ' / ', and ; these two eqations all gie:, this means that fo fee falling poblem, by sing the law of conseation of enegy, we stictly deie the oiginal Newton's second law ma. Hee, althogh the oiginal law of gaity cannot be deied (the ale of may be any constant, cetainly inclding the case that =, we aleady poe that the oiginal law of gaity is not contadicted to the law of conseation of enegy, o the oiginal law of gaity is tenable accately... eiing Oiginal Law of Gaity by Using Law of Conseation of Enegy In ode to eally deie the oiginal law of gaity fo the eample of fee falling poblem, we shold conside the case that a small ball fee falls fom point A to point (point is also shown in ige thogh a ey shot distance Z (the two endpoints of the inteal Z ae point A and point. As deiing the oiginal Newton's second law, we aleady each GM [ ( R H Z ( R H ' ' y p } How to Cite this Aticle: Yha, "New Newton Mechanics Taking Law of Conseation of Enegy as Uniqe Soce Law", Science Jonal of hysics, Volme 5, Aticle I sjp-3, ages, 5, doi:.737/sjp/3

4 S c i e n c e J o n a l o f h y s i c s ( I S S N : a g e 4 whee: R H Z ' Z o the eason that the distance of is ey shot, and in this inteal the gaity can be consideed as a linea fnction, theefoe the wok W of gaity in this inteal can be witten as follows Whee, W a a Z R H Z ( Z is the aeage ale of gaity in this Z inteal, namely the ale of gaity fo the midpoint of inteal. Z Omitting the second ode tem of Z ( 4 ( Z, it gies W ( R H Z RH RZ HZ As the small ball fee falls fom point A to point, its kinetic enegy is as follows m' ' ( R H ( R H Z [ ( R H RH RZ HZ / Accoding to the law of conseation of enegy, we hae W m' ' Sbstitting the elated qantities into the aboe epession, it gies ( R H ( R H Z [ ( R H RH RZ HZ ( R H Z RH RZ HZ / To compae the elated tems, we can each the following thee eqations / Z ( R H ( R H Z All of these thee eqations will gie the following eslt Ths, we aleady deie the oiginal law of gaity by sing the law of conseation of enegy.. New Thee Laws of Motion and New Law of Gaity (omla Ceated By Law of Conseation Of Enegy fo New Newton Mechanics The oiginal Newton's thee laws of motion ae as follows. Newton's ist Law of Motion: Eey object in a state of nifom motion (o at est tends to emain in that state of motion (o at est nless an etenal foce is applied to it. o shot: est emains est, and moing emains moing. Newton's Second Law of Motion: The elationship between an object's mass m, its acceleation a, and the applied foce is = ma. The diection of the foce is the same as the diection of the acceleation. Newton's Thid Law of Motion: o eey action thee is an eqal and opposite eaction. The oiginal Newton s law of gaity: The attactie foce between two objects is as follows ( While fo NNM, taking law of conseation of enegy as niqe soce law, then we hae the following NNM s thee laws of motion and law of gaity. NNM's ist Law of Motion: Eey object in a state of nifom motion (o in a state of nifom otation, o at est tends to emain in that state of motion (o in a state of nifom otation, o at est nless an etenal foce is applied to it; othewise the law of conseation of enegy will be destoyed. o shot: est emains est, moing emains moing, and otating emains otating. NNM's Second Law of Motion: The elationship between an object's mass m, its acceleation a, and the applied foce is a fnction that shold be deied by law of conseation of enegy. The diection of the foce is the same as the diection How to Cite this Aticle: Yha, "New Newton Mechanics Taking Law of Conseation of Enegy as Uniqe Soce Law", Science Jonal of hysics, Volme 5, Aticle I sjp-3, ages, 5, doi:.737/sjp/3

5 S c i e n c e J o n a l o f h y s i c s ( I S S N : a g e 5 of the acceleation. In geneal, the fnction can be witten as the fom of aiable dimension factal:, whee: is a constant o a aiable. o diffeent poblems, the foms of second law may be diffeent. ma NNM's Thid Law of Motion: In geneal, fo eey action thee is an eqal and opposite eaction. In special case, the fnction elationship between action and eaction shold be deied by law of conseation of enegy. The impoed fom of the oiginal Newton s thid law ( is as follows: AB BA AB, whee: BA is a constant o a aiable. o diffeent poblems, the foms of thid law may be diffeent. NNM s law (fomla of gaity: The attactie foce between two objects is a fnction that shold be deied by law of conseation of enegy, o epeimental data; o deied with the help of othe theoies. o diffeent poblems, the foms of law (fomla of gaity may be diffeent. The eslts of oiginal Newton s law of gaity ae only accate in the cases that two objects ae elatie static o nning the staight line between one cente and anothe cente, and the like; fo othe cases its eslts ae all appoimate. In geneal, NNM s law (fomla of gaity may be taken as the fom that adding the amending tem to oiginal Newton s law of gaity, o the following fom of aiable dimension factal: ( whee: is a constant o a aiable. Now fo an eample, a NNM s law (fomla of gaity (an impoed Newton s law of gaity and a NNM's second law of motion (an impoed Newton s second law of motion, they ae sitable fo this eample only, ae deied simltaneosly by law of conseation of enegy. istly, the aiational pinciples established by the law of conseation of enegy can be gien with least sqaes method (LSM. Spposing that the initial total enegy of a closed system eqals W (, and fo time the total enegy eqals W (t, then accoding to the law of conseation of enegy: W ( = (t W (3 This can be witten as: t R W W ( t W ( = t,t (4 Accoding to LSM, fo the inteal [,we can wite the following aiational pinciple: t W dt min t Whee: R (5 min fnctional Π denotes the minimm ale of and it shold be eqal to zeo. It shold be noted that, in many cases W(t appoimate, and R W is not identically eqal to zeo, theefoe Eq.(5 can be sed to sole the poblem. Besides the time coodinate, anothe one can also be sed. o eample, fo inteal [, the following aiational pinciple can be, gien accoding to the law of conseation of enegy: R (6 W d min The aboe-mentioned pinciples ae established by sing the law of conseation of enegy diectly. Sometimes, a cetain pinciple shold be established by sing the law of conseation of enegy indiectly. o eample, a special physical qantity Q may be inteested,not only it can be calclated by sing the law of conseation of enegy, bt also can be calclated by sing othe laws (fo this pape they ae the law of gaity, and Newton s second law. o distingishing the ales, let s denote the ale gien by othe laws as Q,while denote the ale gien by the law of conseation of enegy as Q ',then the ale of R W can be edefined as follows: Q R W = Q' (7 Sbstitting Eq.(7into Eqs.(5and(6,as is Q ' is the eslt calclated with the law of conseation of enegy, it gies the aiational pinciple established by sing the law of conseation of enegy indiectly. Othewise, it is clea that the etent of the ale of Q accods with Q '. How to Cite this Aticle: Yha, "New Newton Mechanics Taking Law of Conseation of Enegy as Uniqe Soce Law", Science Jonal of hysics, Volme 5, Aticle I sjp-3, ages, 5, doi:.737/sjp/3

6 S c i e n c e J o n a l o f h y s i c s ( I S S N : a g e 6 Sbstitting the elated qantities into Eq.(5o Eq.(6,the eqations deied by the condition of an etemm can be witten as follows: a i k i (8 Afte soling these eqations, the impoed law of gaity, and Newton s second law can be eached at once. Accoding to the ale of Π, the effect of the soltion can be jdged. The neae the ale of is to zeo, the bette the effect of the soltion. Π It shold be noted that besides of soling eqations, optimm-seeking methods cold also be sed fo finding the minimm and the constants to be detemined. In fact, the optimm seeking method will be sed in this pape. Now we sole an eample. As shown in ig., spposing that the small ball olls along a long incline fom A to B. Its initial elocity is zeo and the fiction and the otational enegy of small ball ae neglected. ige. A small ball olls fom A to B Spposing that cicle denotes the Eath, M denotes its mass; small ball (teated as a mass point, O A is a plmb line, coodinate is othogonal to O A, coodinate y is othogonal to coodinate (paallel to O A, BC is othogonal to O A. The lengths of OA, OB, BC, and AC ae all eqal to H, and O C eqals the adis R of the Eath. In this eample, the ale of m denotes the mass of the which is the sqae of the elocity fo the ball located at point is inestigated. To distingish the qantities, denote the ale gien by the impoed law of gaity and impoed Newton s second law as,while ' denotes the ale gien by the law of conseation of enegy,then Eq.(6can be witten as H ( ' d min (9 Spposing that the impoed law of gaity and impoed Newton s second law can be witten as the following constant dimension factal foms ( ma ( whee: and ae constants. Now we calclate the elated qantities accoding to the law of conseation of enegy. om Eq.(, the potential enegy of the small ball located at point is V ( ( O ' Accoding to the law of conseation of enegy, we can get ( A And theefoe GM [ m' ( R H ( ' (4 O ' (3 Now we calclate the elated qantities accoding to the impoed law of gaity and impoed Newton s second law. How to Cite this Aticle: Yha, "New Newton Mechanics Taking Law of Conseation of Enegy as Uniqe Soce Law", Science Jonal of hysics, Volme 5, Aticle I sjp-3, ages, 5, doi:.737/sjp/3

7 S c i e n c e J o n a l o f h y s i c s ( I S S N : a g e 7 Spposing that the eqation of olling line is y H o the ball located at point, (5 d/ dt a (6 Becase dt ds Theefoe d a d d (7 Accoding to the impoed law of gaity, the foce along to the tangent is a (8 Accoding to the impoed Newton s second law, fo point, the acceleation along to the tangent is a ( m ( GM a (9 / / O ' om Eq.(7, it gies GM / d { } d / [( H ( R H y ( Sbstitting Eq.(5 into Eq.(, and fo the two sides, we n the integal opeation fom A to, it gies B,and deie the impoed law of gaity and the impoed Newton s second law. istly, accoding to the oiginal law of gaity, the oiginal Newton s second law (i.e., let Eq.(, = in Eq.( and the law of conseation of enegy, all the elated qantities can be calclated, then sbstitte them into Eq.(9, it gies =57.45 = in Hee, accoding to the law of conseation of enegy, it gies ' B =.767 7,while accoding to the oiginal law of gaity, and the oiginal Newton s second law, it gies B =.35 7,the diffeence is abot 5.4 %. o Π the eason that the ale of is not eqal to zeo, then the ales of and can be decided by the optimm seeking method. At pesent all the optimm seeking methods can be diided into two types, one type may not depend on the initial ales which pogam may be complicated, and anothe type eqies the bette initial ales which pogam is simple. One method of the second type, namely the seaching method will be sed in this pape. istly, the ale of is fied so let =,then seach the ale of,as =.46, the ale of eaches the minimm ;then the ale of is fied,and seach the ale of,as Π =.99989, the ale of Π eaches the minimm ;then the ale of is fied,and seach the ale of as =.458, the ale of eaches minimm Becase the last two eslts ae highly close, the seaching can be stopped, and the final eslts ae as follows Π H ( { [( H GM ( R / } ( / / Then the ale can be calclated by a method of nmeical integal. The gien data ae assmed to be: fo Eath, GM= m 3 /s ; the adis of the Eath R= m, H=R/, ty to sole the poblem shown in ig., find the soltion fo the ale of d =.99989,ε=.458, =37.33 Hee the ale of Π is only 4% of Π. While accoding to the law of conseation of enegy, it gies ' B =.785 7,accoding to the impoed law of gaity and the impoed Newton s second law, it gies B =.73 7, the diffeence is abot.7 % only. The eslts sitable fo this eample with the constant dimension factal fom ae as follows How to Cite this Aticle: Yha, "New Newton Mechanics Taking Law of Conseation of Enegy as Uniqe Soce Law", Science Jonal of hysics, Volme 5, Aticle I sjp-3, ages, 5, doi:.737/sjp/3

8 S c i e n c e J o n a l o f h y s i c s ( I S S N : a g e 8 The impoed law of gaity eads ( The impoed Newton s second law eads.458 ma (3 The aboe mentioned eslts hae been pblished on efeence [. Accoding to the aboe eslts, it can be said that we cold not ely on any epeimental data, only apply the law of conseation of enegy to deie the impoed law of gaity, and impoed Newton's second law; and demonstate that the oiginal Newton s law of gaity and Newton's second law ae all tenable appoimately fo this eample. o the eample shown in ig. that a small ball olls along the inclined plane, in ode to obtain the bette eslts, we discss the aiable dimension factal soltion with Eq.(4 that is established by the law of conseation of enegy diectly. Spposing that the impoed Newton s second law and the impoed law of gaity with the fom of aiable dimension factal can be witten as follows: ; ma, k /, k ; whee: is the hoizon distance that the small ball olls. H With the simila seaching method, the ales of k, k can be detemined, and the eslts ae as follows ,.7 The eslts of aiable dimension factal ae mch bette than that of constant dimension factal. o Π eample, the final, it is only.9% of Π (3.7. While accoding to the ' B law of conseation of enegy, it gies =.767 7,accoding to the impoed law of gaity and the impoed Newton s second law, it gies B =.777 7, the diffeence is abot.93 % only. The impoed law of gaity eads.7 3 (4 The impoed Newton s second law eads 8.85 (5 ma 8 whee: is the hoizon distance that the small ball olls is. H Thee is anothe poblem shold also be discssed. That is the impoed kinetic enegy fomla. As well-known, the kinetic enegy fomla has been modified in the theoy of elatiity, now we impoe the kinetic enegy fomla with the law of conseation of enegy. Spposing that the impoed kinetic enegy fomla is Ed m, is the hoizon distance that the small ball olls ( H. k 3 ;whee: With the simila seaching method, we can get: 3 k , then the impoed kinetic enegy fomla with aiable dimension factal fom eads E d m Becase the effect of impoement is ey small (the ale of is only impoed fom into , theefoe these eslts shold be fo efeence only. 3 With the Help of Geneal Relatiity and Accate Epeimental ata to eie the Impoed Newton's omla of Uniesal Gaitation Π of. H Ning deied an eqation accoding to geneal elatiity, with the help of H's eqation and Binet s fomla, we get the following impoed Newton's fomla of niesal gaitation [ The eslts sitable fo this eample with the aiable dimension factal fom ae as follows How to Cite this Aticle: Yha, "New Newton Mechanics Taking Law of Conseation of Enegy as Uniqe Soce Law", Science Jonal of hysics, Volme 5, Aticle I sjp-3, ages, 5, doi:.737/sjp/3

9 S c i e n c e J o n a l o f h y s i c s ( I S S N : a g e 9 3G M c 4 mp (6.5 4 (8 whee: G is gaitational constant, M and m ae the masses of the two objects, is the distance between the two objects, c is the speed of light, p is the half nomal chod fo the object m moing aond the object M along with a ce, and the ale of p is gien by: p = a(-e (fo ellipse, p = a (e - (fo hypebola, p = y / (fo paabola. It shold be noted that, this impoed Newton's fomla of niesal gaitation can also be witten as the fom of aiable dimension factal. Sppose 3G M mp 4 c GMp It gies 3 ln( / ln 4 c o the poblem of gaitational defection of a photon obit aond the Sn, M=.99 3 kg, = m, c= m/s, then we hae: The impoed Newton s niesal gaitation fomla (Eq.(6 can gie the same eslts as gien by geneal elatiity fo the poblem of planetay adance of peihelion and the poblem of gaitational defection of a photon obit aond the Sn. o the poblem of planetay adance of peihelion, the impoed Newton s niesal gaitation fomla eads 3G M ma( e 4 c (7 o the poblem of gaitational defection of a photon obit aond the Sn, the impoed Newton s niesal gaitation fomla eads whee: is the shotest distance between the light and the Sn, if the light and the Sn is tangent, it is eqal to the adis of the Sn. The fnny thing is that, fo this poblem, the maimm gaitational foce gien by the impoed Newton s niesal gaitation fomla is.5 times of that gien by the oiginal Newton s law of gaity. Althogh the deflection angles gien by Eq. (6 and Eq. (8 ae all eactly the same as gien by geneal elatiity, they hae still slight deiations with the pecise astonomical obseations. What ae the easons? The answe is that the deflection angle not only is depended on the gaitational effect of the Sn, bt also depended on the gaitational effects of othe celestial bodies, as well as the inflences of snlight pesse and so on. If all factos ae taken into accont, not only geneal elatiity can do nothing fo this poblem, bt also fo a long time it cold not be soled by theoetical method. Theefoe, at pesent the only way to sole this poblem is based on the pecise obseations to deie the synthesized gaitational fomla (inclding the effects of othe celestial bodies and snlight pesse fo the poblem of deflection of photon aond the Sn. As well-known, the deflection angle gien by geneal elatiity o the impoed Newton's fomla of niesal gaitation is as follows =.75 Adding an additional tem to Eq.(8, it gies the synthesized gaitational fomla between the photon and the Sn as follows GMp wg M p ( c c (9 whee: w is a constant to be detemined. How to Cite this Aticle: Yha, "New Newton Mechanics Taking Law of Conseation of Enegy as Uniqe Soce Law", Science Jonal of hysics, Volme 5, Aticle I sjp-3, ages, 5, doi:.737/sjp/3

10 S c i e n c e J o n a l o f h y s i c s ( I S S N : a g e ige 3. eflection of photon aond the Sn Now We etemine The Vale Of W Accoding To Accate Epeimental ata. istly the poblem of deflection of photon aond the Sn as shown in ig.3 will be soled with Eq.(9. The method to be sed is the same as pesented in efeences [ and [3. Spposing that m epesents the mass of photon. Becase the deflection angle is ey small, we can assme that =; ths on point (, y, its coodinate can be witten as (,y, then the foce acted on photon eads ( y (3 / Whee: The ale of is gien by Eq.(9. Becase m Hence dt dy y c dy (3 GM dy 6G M p dy c 3 3 ( y c ( y / 5/ Theefoe GM 4G M p 6wG M p c c 5c Becase tg c 3 3 By sing the half nomal chod gien in efeence [, it gies c p GM Then the deflection angle is as follows 4GM w c 5 Whee: is the adis of Sn. Becase 4 GM c (34 ( wg M p 5 c Becase dy 3 ( y / dy 7 ( y / (3 dy (, 5/ 4 dy 8 ( 7 / y 5 6 y 3, Then, it gies w ( 5 (35 Ths the ale of w can be soled as follows w 5 ( (36 Now we can detemine the ale of w accoding to the epeimental data. How to Cite this Aticle: Yha, "New Newton Mechanics Taking Law of Conseation of Enegy as Uniqe Soce Law", Science Jonal of hysics, Volme 5, Aticle I sjp-3, ages, 5, doi:.737/sjp/3

11 S c i e n c e J o n a l o f h y s i c s ( I S S N : a g e Table shows the epeimental data of adio astonomy fo the deflection angle of photon aond the Sn (taken fom efeence [4. Table. The epeimental data of adio astonomy fo the deflection angle of photon aond the Sn Yea Obsee Obseed ale / 969 G.A.Seielstd et al.77±. 969.O.Mhleman et al I.I.Shapio.8±. 97 R.A.Samak.57±.8 97 J.M.Hill.87± ± ± ±. Now we choose the epeimental data in 975, it gies.76 φ.8 Then, we hae.857 w.4857 Taking the aeage ale, it gies w=.574 Ths, accoding to the epeimental data, the synthesized gaitational fomla can be decided. 4 Contadiction between the Law of Conseation Of Enegy and the Law of Conseation Of Momentm As Well As the Law of Conseation of Angla Momentm As well-known, nlike the law of conseation of enegy, the law of conseation of momentm and the law of conseation of angla momentm ae only coect nde cetain conditions. o eample, consideing fiction foce and the like, these two laws will not be coect. Now we point ot fthe that fo NNM the law of conseation of momentm as well as the law of conseation of angla momentm will be not coect nde cetain conditions (o thei eslts contadict with the law of conseation of enegy. As well-known, in ode to poe the law of conseation of momentm as well as the law of conseation of angla momentm, the oiginal Newton's second law shold be applied. Howee, as we hae made clea, the oiginal Newton's second law will not be coect nde cetain conditions, fo sch cases, these two laws also will not coect. Hee we find anothe poblem, if the oiginal thee conseation laws ae all coect, theefoe fo cetain isses, the law of conseation of enegy and the othe two conseation laws cold be combined to apply. While fo NNM, if the othe two conseation laws cannot be applied, how to complement the new fomlas to eplace these two conseation laws? The soltion is ey simple: accoding to the law of conseation of enegy, fo any time, the deiaties of total enegy W (t shold be all eqal to zeo, then we hae n d W ( t n dt n,,3, (37 In addition, nning the integal opeations to the both sides of Eq.(3, it gies t W ( t = W ( t dt (38 Now we illstate that, becase thee is one tth only, een within the scope of oiginal classical mechanics, the contadiction cold also appea between the law of conseation of enegy and the law of conseation of momentm. As shown in ig.4, a man walks along the ca located on the hoizontal smooth ail, the length of the ca eqals L, the mass of the man is m and the ca is m. At beginning the man and the ca ae all at est, then the man walks fom one end to the othe end of the ca, ty to decide the moing distances of the man and the ca. This eample is taken fom efeences [5. How to Cite this Aticle: Yha, "New Newton Mechanics Taking Law of Conseation of Enegy as Uniqe Soce Law", Science Jonal of hysics, Volme 5, Aticle I sjp-3, ages, 5, doi:.737/sjp/3

12 S c i e n c e J o n a l o f h y s i c s ( I S S N : a g e ige 4 A Man Walks along the Ca Located On the Hoizontal Smooth Rail As soling this poblem by sing the oiginal classical mechanics, the law of conseation of momentm will be sed, it gies m m Howee, at beginning the man and the ca ae all at est, the total enegy of the system is eqal to zeo; while once they ae moing, they will hae speeds, and the total enegy of the system is not eqal to zeo; ths the law of conseation of enegy will be destoyed. o this paado, the oiginal classical mechanics looks withot seeing. In fact, consideing the lost enegy of the man and applying the law of conseation of enegy, the completely diffeent eslt will be eached. As the oiginal law of conseation of momentm and the law of conseation of t ( Const angla momentm ( L t L Const ae not coect, we can popose thei impoed foms of aiable dimension factal. The impoed law of conseation of momentm: t ( is a constant o a aiable, and the impoed law of conseation of angla momentm: ( is a constant o a aiable. Refeences L L t. Yha, eiing Impoed Newton s Second Law and the Law of Gaity at One Time with om of actal omla, Engineeing Science. 3,Vol.5,No.6, Yha, Impoed Newton s fomla of niesal gaitation, Zianzazhi (Nate Jonal, (, C. Kittel et al, Tanslated into Chinese by Chen Bingqian et al, Mechanics, Beijing: Science ess, 979, Li Liao, Geneal elatiity, Beijing: Highe edcation pess, 987, 5. X Heing, Mechanics (eised edition, Shanghai: East China Nomal Uniesity ess, 998, How to Cite this Aticle: Yha, "New Newton Mechanics Taking Law of Conseation of Enegy as Uniqe Soce Law", Science Jonal of hysics, Volme 5, Aticle I sjp-3, ages, 5, doi:.737/sjp/3

Errors in Nobel Prize for Physics (3) Conservation of Energy Leads to Probability Conservation of Parity, Momentum and so on

Errors in Nobel Prize for Physics (3) Conservation of Energy Leads to Probability Conservation of Parity, Momentum and so on Eos in Nobel ize fo hysics (3) Conseation of Enegy Leads to obability Conseation of aity, Momentum and so on Fu Yuhua (CNOOC Reseach Institute, E-mail:fuyh945@sina.com) Abstact: One of the easons fo 957

More information

Expanding Newton Mechanics with Neutrosophy and Quadstage Method New Newton Mechanics Taking Law of. Conservation of Energy as Unique Source Law

Expanding Newton Mechanics with Neutrosophy and Quadstage Method New Newton Mechanics Taking Law of. Conservation of Energy as Unique Source Law Neutosophic Sets and Systems, Vol. 3, 4 3 Epanding Newton Mechanics with Neutosophy and Quadstage Method New Newton Mechanics Taking Law of Conseation of Enegy as Unique Souce Law Fu Yuhua CNOOC Reseach

More information

New Newton Mechanics Taking Law of Conservation of Energy as Unique Source Law (Revised Version 3)

New Newton Mechanics Taking Law of Conservation of Energy as Unique Source Law (Revised Version 3) New Newton Mechanics Taking Law of Conseation of Enegy as Unique Souce Law eised Vesion 3 u Yuhua CNOOC eseach Institute E-mail: fuyh945@sina.com Abstact: Accoding to the pinciple of the uniqueness of

More information

New Newton Mechanics Taking Law of Conservation of Energy as Unique Source Law (Revised Version)

New Newton Mechanics Taking Law of Conservation of Energy as Unique Source Law (Revised Version) New Newton Mechanics Taking Law of Conseation of Enegy as Unique Souce Law (Reised Vesion) Fu Yuhua CNOOC Reseach Institute E-mail: fuyh945@sina.com Abstact: Accoding to the pinciple of the uniqueness

More information

Solving Problems of Advance of Mercury s Perihelion and Deflection of. Photon Around the Sun with New Newton s Formula of Gravity

Solving Problems of Advance of Mercury s Perihelion and Deflection of. Photon Around the Sun with New Newton s Formula of Gravity Solving Poblems of Advance of Mecuy s Peihelion and Deflection of Photon Aound the Sun with New Newton s Fomula of Gavity Fu Yuhua (CNOOC Reseach Institute, E-mail:fuyh945@sina.com) Abstact: Accoding to

More information

r cos, and y r sin with the origin of coordinate system located at

r cos, and y r sin with the origin of coordinate system located at Lectue 3-3 Kinematics of Rotation Duing ou peious lectues we hae consideed diffeent examples of motion in one and seeal dimensions. But in each case the moing object was consideed as a paticle-like object,

More information

rt () is constant. We know how to find the length of the radius vector by r( t) r( t) r( t)

rt () is constant. We know how to find the length of the radius vector by r( t) r( t) r( t) Cicula Motion Fom ancient times cicula tajectoies hae occupied a special place in ou model of the Uniese. Although these obits hae been eplaced by the moe geneal elliptical geomety, cicula motion is still

More information

DYNAMICS OF UNIFORM CIRCULAR MOTION

DYNAMICS OF UNIFORM CIRCULAR MOTION Chapte 5 Dynamics of Unifom Cicula Motion Chapte 5 DYNAMICS OF UNIFOM CICULA MOTION PEVIEW An object which is moing in a cicula path with a constant speed is said to be in unifom cicula motion. Fo an object

More information

AP Physics 1 - Circular Motion and Gravitation Practice Test (Multiple Choice Section) Answer Section

AP Physics 1 - Circular Motion and Gravitation Practice Test (Multiple Choice Section) Answer Section AP Physics 1 - Cicula Motion and Gaitation Pactice est (Multiple Choice Section) Answe Section MULIPLE CHOICE 1. B he centipetal foce must be fiction since, lacking any fiction, the coin would slip off.

More information

Chapter 12: Kinematics of a Particle 12.8 CURVILINEAR MOTION: CYLINDRICAL COMPONENTS. u of the polar coordinate system are also shown in

Chapter 12: Kinematics of a Particle 12.8 CURVILINEAR MOTION: CYLINDRICAL COMPONENTS. u of the polar coordinate system are also shown in ME 01 DYNAMICS Chapte 1: Kinematics of a Paticle Chapte 1 Kinematics of a Paticle A. Bazone 1.8 CURVILINEAR MOTION: CYLINDRICAL COMPONENTS Pola Coodinates Pola coodinates ae paticlaly sitable fo solving

More information

ESTIMATION MODELS USING MATHEMATICAL CONCEPTS AND NEWTON S LAWS FOR CONIC SECTION TRAJECTORIES ON EARTH S SURFACE

ESTIMATION MODELS USING MATHEMATICAL CONCEPTS AND NEWTON S LAWS FOR CONIC SECTION TRAJECTORIES ON EARTH S SURFACE Fundamental Jounal of Mathematical Physics Vol. 3 Issue 1 13 Pages 33-44 Published online at http://www.fdint.com/ ESTIMATION MODELS USING MATHEMATICAL CONCEPTS AND NEWTON S LAWS FOR CONIC SECTION TRAJECTORIES

More information

Unit 6 Practice Test. Which vector diagram correctly shows the change in velocity Δv of the mass during this time? (1) (1) A. Energy KE.

Unit 6 Practice Test. Which vector diagram correctly shows the change in velocity Δv of the mass during this time? (1) (1) A. Energy KE. Unit 6 actice Test 1. Which one of the following gaphs best epesents the aiation of the kinetic enegy, KE, and of the gaitational potential enegy, GE, of an obiting satellite with its distance fom the

More information

Chap13. Universal Gravitation

Chap13. Universal Gravitation Chap13. Uniesal Gaitation Leel : AP Physics Instucto : Kim 13.1 Newton s Law of Uniesal Gaitation - Fomula fo Newton s Law of Gaitation F g = G m 1m 2 2 F21 m1 F12 12 m2 - m 1, m 2 is the mass of the object,

More information

Class #16 Monday, March 20, 2017

Class #16 Monday, March 20, 2017 D. Pogo Class #16 Monday, Mach 0, 017 D Non-Catesian Coodinate Systems A point in space can be specified by thee numbes:, y, and z. O, it can be specified by 3 diffeent numbes:,, and z, whee = cos, y =

More information

Unit 6 Practice Test. Which vector diagram correctly shows the change in velocity Δv of the mass during this time? (1) (1) A. Energy KE.

Unit 6 Practice Test. Which vector diagram correctly shows the change in velocity Δv of the mass during this time? (1) (1) A. Energy KE. Unit 6 actice Test 1. Which one of the following gaphs best epesents the aiation of the kinetic enegy, KE, and of the gaitational potential enegy, GE, of an obiting satellite with its distance fom the

More information

Answers to test yourself questions

Answers to test yourself questions Answes to test youself questions opic. Cicula motion π π a he angula speed is just ω 5. 7 ad s. he linea speed is ω 5. 7 3. 5 7. 7 m s.. 4 b he fequency is f. 8 s.. 4 3 a f. 45 ( 3. 5). m s. 3 a he aeage

More information

7.2. Coulomb s Law. The Electric Force

7.2. Coulomb s Law. The Electric Force Coulomb s aw Recall that chaged objects attact some objects and epel othes at a distance, without making any contact with those objects Electic foce,, o the foce acting between two chaged objects, is somewhat

More information

ENGI 4430 Non-Cartesian Coordinates Page xi Fy j Fzk from Cartesian coordinates z to another orthonormal coordinate system u, v, ˆ i ˆ ˆi

ENGI 4430 Non-Cartesian Coordinates Page xi Fy j Fzk from Cartesian coordinates z to another orthonormal coordinate system u, v, ˆ i ˆ ˆi ENGI 44 Non-Catesian Coodinates Page 7-7. Conesions between Coodinate Systems In geneal, the conesion of a ecto F F xi Fy j Fzk fom Catesian coodinates x, y, z to anothe othonomal coodinate system u,,

More information

A note on finding geodesic equation of two parameter Weibull distribution

A note on finding geodesic equation of two parameter Weibull distribution Theoetical Mathematics & Applications, ol.4, no.3, 04, 43-5 ISSN: 79-9687 (pint), 79-9709 (online) Scienpess Ltd, 04 A note on finding geodesic eqation of two paamete Weibll distibtion William W.S. Chen

More information

Circular Motion. x-y coordinate systems. Other coordinates... PHY circular-motion - J. Hedberg

Circular Motion. x-y coordinate systems. Other coordinates... PHY circular-motion - J. Hedberg Cicula Motion PHY 207 - cicula-motion - J. Hedbeg - 2017 x-y coodinate systems Fo many situations, an x-y coodinate system is a geat idea. Hee is a map on Manhattan. The steets ae laid out in a ectangula

More information

The study of the motion of a body along a general curve. the unit vector normal to the curve. Clearly, these unit vectors change with time, u ˆ

The study of the motion of a body along a general curve. the unit vector normal to the curve. Clearly, these unit vectors change with time, u ˆ Section. Cuilinea Motion he study of the motion of a body along a geneal cue. We define u ˆ û the unit ecto at the body, tangential to the cue the unit ecto nomal to the cue Clealy, these unit ectos change

More information

A New Approach to General Relativity

A New Approach to General Relativity Apeion, Vol. 14, No. 3, July 7 7 A New Appoach to Geneal Relativity Ali Rıza Şahin Gaziosmanpaşa, Istanbul Tukey E-mail: aizasahin@gmail.com Hee we pesent a new point of view fo geneal elativity and/o

More information

PROJECTILE MOTION. At any given point in the motion, the velocity vector is always a tangent to the path.

PROJECTILE MOTION. At any given point in the motion, the velocity vector is always a tangent to the path. PROJECTILE MOTION A pojectile is any object that has been thown though the ai. A foce must necessaily set the object in motion initially but, while it is moing though the ai, no foce othe than gaity acts

More information

On the integration of the equations of hydrodynamics

On the integration of the equations of hydrodynamics Uebe die Integation de hydodynamischen Gleichungen J f eine u angew Math 56 (859) -0 On the integation of the equations of hydodynamics (By A Clebsch at Calsuhe) Tanslated by D H Delphenich In a pevious

More information

Math Notes on Kepler s first law 1. r(t) kp(t)

Math Notes on Kepler s first law 1. r(t) kp(t) Math 7 - Notes on Keple s fist law Planetay motion and Keple s Laws We conside the motion of a single planet about the sun; fo simplicity, we assign coodinates in R 3 so that the position of the sun is

More information

From Errors to Uncertainties in Basic Course in Electrical Measurements. Vladimir Haasz, Milos Sedlacek

From Errors to Uncertainties in Basic Course in Electrical Measurements. Vladimir Haasz, Milos Sedlacek Fom Eos to ncetainties in asic Cose in Electical Measements Vladimi Haasz, Milos Sedlacek Czech Technical nivesity in Page, Faclty of Electical Engineeing, Technicka, CZ-667 Page, Czech epblic phone:40

More information

4. Two and Three Dimensional Motion

4. Two and Three Dimensional Motion 4. Two and Thee Dimensional Motion 1 Descibe motion using position, displacement, elocity, and acceleation ectos Position ecto: ecto fom oigin to location of the object. = x i ˆ + y ˆ j + z k ˆ Displacement:

More information

Gravity and isostasy

Gravity and isostasy Gavity and isostasy Reading: owle p60 74 Theoy of gavity Use two of Newton s laws: ) Univesal law of gavitation: Gmm = m m Univesal gavitational constant G=6.67 x 0 - Nm /kg ) Second law of motion: = ma

More information

Chapters 5-8. Dynamics: Applying Newton s Laws

Chapters 5-8. Dynamics: Applying Newton s Laws Chaptes 5-8 Dynamics: Applying Newton s Laws Systems of Inteacting Objects The Fee Body Diagam Technique Examples: Masses Inteacting ia Nomal Foces Masses Inteacting ia Tensions in Ropes. Ideal Pulleys

More information

arxiv:gr-qc/ v1 17 Feb 2001

arxiv:gr-qc/ v1 17 Feb 2001 Scatteing poblem of scala wave in womhole geomety Sng-Won Kim Depatment of Science Edcation, Ewha Women s Univesity, Seol -75, Koea Jne 5, 7 In this pape, we stdy the scatteing poblem of the scala wave

More information

3.3 Properties of Vortex Structures

3.3 Properties of Vortex Structures .0 - Maine Hydodynamics, Sping 005 Lecte 8.0 - Maine Hydodynamics Lecte 8 In Lecte 8, paagaph 3.3 we discss some popeties of otex stctes. In paagaph 3.4 we dedce the Benolli eqation fo ideal, steady flow.

More information

Physics 107 TUTORIAL ASSIGNMENT #8

Physics 107 TUTORIAL ASSIGNMENT #8 Physics 07 TUTORIAL ASSIGNMENT #8 Cutnell & Johnson, 7 th edition Chapte 8: Poblems 5,, 3, 39, 76 Chapte 9: Poblems 9, 0, 4, 5, 6 Chapte 8 5 Inteactive Solution 8.5 povides a model fo solving this type

More information

Version 1.0. klm. General Certificate of Education June Mathematics. Mechanics 2B. Mark Scheme

Version 1.0. klm. General Certificate of Education June Mathematics. Mechanics 2B. Mark Scheme Vesion.0 klm Geneal Cetificate of Education June 00 Mathematics MMB Mechanics B Mak Scheme Mak schemes ae pepaed by the Pincipal Examine and consideed, togethe with the eleant questions, by a panel of

More information

Theoretical Competition:Solution Question 1 Page 1 of 8. I. Solution Q1_THEORY_SOLUTION_1700_SENT_TO_LEADER.DOCX. r 2. r 1

Theoretical Competition:Solution Question 1 Page 1 of 8. I. Solution Q1_THEORY_SOLUTION_1700_SENT_TO_LEADER.DOCX. r 2. r 1 Q_THEOY_SOLUTION_7_SENT_TO_LEADE.DOCX Theoetical Competition:Solution Question Page of 8 I. Solution M O m. Let O be thei cente of mass. Hence M m () m M GMm GMm () G M m Fom Eq. (), o using educed mass,

More information

Skps Media

Skps Media Skps Media Skps Media Skps Media Skps Media Skps Media Skps Media Skps Media Skps Media Skps Media Skps Media Skps Media Skps Media Skps Media Skps Media Skps Media Skps Media Skps Media Skps Media Skps

More information

Newton s Laws, Kepler s Laws, and Planetary Orbits

Newton s Laws, Kepler s Laws, and Planetary Orbits Newton s Laws, Keple s Laws, and Planetay Obits PROBLEM SET 4 DUE TUESDAY AT START OF LECTURE 28 Septembe 2017 ASTRONOMY 111 FALL 2017 1 Newton s & Keple s laws and planetay obits Unifom cicula motion

More information

Circular Orbits. and g =

Circular Orbits. and g = using analyse planetay and satellite motion modelled as unifom cicula motion in a univesal gavitation field, a = v = 4π and g = T GM1 GM and F = 1M SATELLITES IN OBIT A satellite is any object that is

More information

Ch04: Motion in two and three dimensions (2D and 3D)

Ch04: Motion in two and three dimensions (2D and 3D) Ch4: Motion in two and thee dimensions (D and 3D) Displacement, elocity and acceleation ectos Pojectile motion Cicula motion Relatie motion 4.: Position and displacement Position of an object in D o 3D

More information

Projection Gravitation, a Projection Force from 5-dimensional Space-time into 4-dimensional Space-time

Projection Gravitation, a Projection Force from 5-dimensional Space-time into 4-dimensional Space-time Intenational Jounal of Physics, 17, Vol. 5, No. 5, 181-196 Available online at http://pubs.sciepub.com/ijp/5/5/6 Science and ducation Publishing DOI:1.1691/ijp-5-5-6 Pojection Gavitation, a Pojection Foce

More information

Physics 181. Assignment 4

Physics 181. Assignment 4 Physics 181 Assignment 4 Solutions 1. A sphee has within it a gavitational field given by g = g, whee g is constant and is the position vecto of the field point elative to the cente of the sphee. This

More information

Uniform Circular Motion

Uniform Circular Motion Unifom Cicula Motion Intoduction Ealie we defined acceleation as being the change in velocity with time: a = v t Until now we have only talked about changes in the magnitude of the acceleation: the speeding

More information

Prediction of Ship Manoeuvrability Making Use of Model Tests

Prediction of Ship Manoeuvrability Making Use of Model Tests epinted: 3-5- Website: www.shipmotions.nl epot 88, Apil 97, Delft niesity of Technology, Ship Hydomechanics aboatoy, Mekelweg, 68 CD Delft, The ethelands. Pediction of Ship Manoeability Making se of Model

More information

Physics 2A Chapter 10 - Moment of Inertia Fall 2018

Physics 2A Chapter 10 - Moment of Inertia Fall 2018 Physics Chapte 0 - oment of netia Fall 08 The moment of inetia of a otating object is a measue of its otational inetia in the same way that the mass of an object is a measue of its inetia fo linea motion.

More information

Motion in a Plane Uniform Circular Motion

Motion in a Plane Uniform Circular Motion Lectue 11 Chapte 8 Physics I Motion in a Plane Unifom Cicula Motion Couse website: http://faculty.uml.edu/andiy_danylo/teaching/physicsi PHYS.1410 Lectue 11 Danylo Depatment of Physics and Applied Physics

More information

Figure 1. We will begin by deriving a very general expression before returning to Equations 1 and 2 to determine the specifics.

Figure 1. We will begin by deriving a very general expression before returning to Equations 1 and 2 to determine the specifics. Deivation of the Laplacian in Spheical Coodinates fom Fist Pinciples. Fist, let me state that the inspiation to do this came fom David Giffiths Intodction to Electodynamics textbook Chapte 1, Section 4.

More information

Graphs of Sine and Cosine Functions

Graphs of Sine and Cosine Functions Gaphs of Sine and Cosine Functions In pevious sections, we defined the tigonometic o cicula functions in tems of the movement of a point aound the cicumfeence of a unit cicle, o the angle fomed by the

More information

Force can be exerted by direct contact between bodies: Contact Force.

Force can be exerted by direct contact between bodies: Contact Force. Chapte 4, Newton s Laws of Motion Chapte IV NEWTON S LAWS OF MOTION Study of Dynamics: cause of motion (foces) and the esistance of objects to motion (mass), also called inetia. The fundamental Pinciples

More information

Faraday s Law. Faraday s Law. Faraday s Experiments. Faraday s Experiments. Magnetic Flux. Chapter 31. Law of Induction (emf( emf) Faraday s Law

Faraday s Law. Faraday s Law. Faraday s Experiments. Faraday s Experiments. Magnetic Flux. Chapter 31. Law of Induction (emf( emf) Faraday s Law Faaday s Law Faaday s Epeiments Chapte 3 Law of nduction (emf( emf) Faaday s Law Magnetic Flu Lenz s Law Geneatos nduced Electic fields Michael Faaday discoeed induction in 83 Moing the magnet induces

More information

The Laws of Motion ( ) N SOLUTIONS TO PROBLEMS ! F = ( 6.00) 2 + ( 15.0) 2 N = 16.2 N. Section 4.4. Newton s Second Law The Particle Under a Net Force

The Laws of Motion ( ) N SOLUTIONS TO PROBLEMS ! F = ( 6.00) 2 + ( 15.0) 2 N = 16.2 N. Section 4.4. Newton s Second Law The Particle Under a Net Force SOLUTIONS TO PROBLEMS The Laws of Motion Section 4.3 Mass P4. Since the ca is moving with constant speed and in a staight line, the esultant foce on it must be zeo egadless of whethe it is moving (a) towad

More information

Duality between Statical and Kinematical Engineering Systems

Duality between Statical and Kinematical Engineering Systems Pape 00, Civil-Comp Ltd., Stiling, Scotland Poceedings of the Sixth Intenational Confeence on Computational Stuctues Technology, B.H.V. Topping and Z. Bittna (Editos), Civil-Comp Pess, Stiling, Scotland.

More information

3.3 Centripetal Force

3.3 Centripetal Force 3.3 Centipetal Foce Think of a time when ou wee a passenge in a ca going aound a shap cue at high speed (Figue 1). If the ca wee going fast enough, ou might feel the side of the ca doo pushing on ou side.

More information

On the reconstruction of the coronal magnetic field from coronal Hanle / Zeeman observations

On the reconstruction of the coronal magnetic field from coronal Hanle / Zeeman observations On the econstction of the coonal magnetic field fom coonal Hanle / Zeeman obsevations M. Kama & B. Inheste Max-Planck Institte fo Sola System Reseach GERMANY Linda 005 Coonal Magnetic Field Magnetic field

More information

CMSC 425: Lecture 5 More on Geometry and Geometric Programming

CMSC 425: Lecture 5 More on Geometry and Geometric Programming CMSC 425: Lectue 5 Moe on Geomety and Geometic Pogamming Moe Geometic Pogamming: In this lectue we continue the discussion of basic geometic ogamming fom the eious lectue. We will discuss coodinate systems

More information

History of Astronomy - Part II. Tycho Brahe - An Observer. Johannes Kepler - A Theorist

History of Astronomy - Part II. Tycho Brahe - An Observer. Johannes Kepler - A Theorist Histoy of Astonomy - Pat II Afte the Copenican Revolution, astonomes stived fo moe obsevations to help bette explain the univese aound them Duing this time (600-750) many majo advances in science and astonomy

More information

to point uphill and to be equal to its maximum value, in which case f s, max = μsfn

to point uphill and to be equal to its maximum value, in which case f s, max = μsfn Chapte 6 16. (a) In this situation, we take f s to point uphill and to be equal to its maximum value, in which case f s, max = μsf applies, whee μ s = 0.5. pplying ewton s second law to the block of mass

More information

Physics: Work & Energy Beyond Earth Guided Inquiry

Physics: Work & Energy Beyond Earth Guided Inquiry Physics: Wok & Enegy Beyond Eath Guided Inquiy Elliptical Obits Keple s Fist Law states that all planets move in an elliptical path aound the Sun. This concept can be extended to celestial bodies beyond

More information

EN40: Dynamics and Vibrations. Midterm Examination Thursday March

EN40: Dynamics and Vibrations. Midterm Examination Thursday March EN40: Dynamics and Vibations Midtem Examination Thusday Mach 9 2017 School of Engineeing Bown Univesity NAME: Geneal Instuctions No collaboation of any kind is pemitted on this examination. You may bing

More information

Chapter 12. Kinetics of Particles: Newton s Second Law

Chapter 12. Kinetics of Particles: Newton s Second Law Chapte 1. Kinetics of Paticles: Newton s Second Law Intoduction Newton s Second Law of Motion Linea Momentum of a Paticle Systems of Units Equations of Motion Dynamic Equilibium Angula Momentum of a Paticle

More information

Integral Control via Bias Estimation

Integral Control via Bias Estimation 1 Integal Contol via Bias stimation Consie the sstem ẋ = A + B +, R n, R p, R m = C +, R q whee is an nknown constant vecto. It is possible to view as a step istbance: (t) = 0 1(t). (If in fact (t) vaies

More information

PHYSICS 1210 Exam 2 University of Wyoming 14 March ( Day!) points

PHYSICS 1210 Exam 2 University of Wyoming 14 March ( Day!) points PHYSICS 1210 Exam 2 Univesity of Wyoming 14 Mach ( Day!) 2013 150 points This test is open-note and closed-book. Calculatos ae pemitted but computes ae not. No collaboation, consultation, o communication

More information

Thomas Whitham Sixth Form Mechanics in Mathematics. Rectilinear Motion Dynamics of a particle Projectiles Vectors Circular motion

Thomas Whitham Sixth Form Mechanics in Mathematics. Rectilinear Motion Dynamics of a particle Projectiles Vectors Circular motion Thomas Whitham Sith om Mechanics in Mathematics Unit M Rectilinea Motion Dynamics of a paticle Pojectiles Vectos Cicula motion . Rectilinea Motion omation and solution of simple diffeential equations in

More information

Chapter 13 Gravitation

Chapter 13 Gravitation Chapte 13 Gavitation In this chapte we will exploe the following topics: -Newton s law of gavitation, which descibes the attactive foce between two point masses and its application to extended objects

More information

Physics 121 Hour Exam #5 Solution

Physics 121 Hour Exam #5 Solution Physics 2 Hou xam # Solution This exam consists of a five poblems on five pages. Point values ae given with each poblem. They add up to 99 points; you will get fee point to make a total of. In any given

More information

Physics 201, Lecture 6

Physics 201, Lecture 6 Physics 201, Lectue 6 Today s Topics q Unifom Cicula Motion (Section 4.4, 4.5) n Cicula Motion n Centipetal Acceleation n Tangential and Centipetal Acceleation q Relatie Motion and Refeence Fame (Sec.

More information

Rigid Body Dynamics 2. CSE169: Computer Animation Instructor: Steve Rotenberg UCSD, Winter 2018

Rigid Body Dynamics 2. CSE169: Computer Animation Instructor: Steve Rotenberg UCSD, Winter 2018 Rigid Body Dynamics 2 CSE169: Compute Animation nstucto: Steve Rotenbeg UCSD, Winte 2018 Coss Poduct & Hat Opeato Deivative of a Rotating Vecto Let s say that vecto is otating aound the oigin, maintaining

More information

To Feel a Force Chapter 7 Static equilibrium - torque and friction

To Feel a Force Chapter 7 Static equilibrium - torque and friction To eel a oce Chapte 7 Chapte 7: Static fiction, toque and static equilibium A. Review of foce vectos Between the eath and a small mass, gavitational foces of equal magnitude and opposite diection act on

More information

Section 6.2: Orbits. Gm r. v = v 2 = Gm r. m = rv2 G. Solution: m = rv2 G ( )( 7.5!10 5 m/s ) 2. = 5.34!1017 m m kg # # m2. kg 2

Section 6.2: Orbits. Gm r. v = v 2 = Gm r. m = rv2 G. Solution: m = rv2 G ( )( 7.5!10 5 m/s ) 2. = 5.34!1017 m m kg # # m2. kg 2 Section 6.2: Obits Mini Inestigation: Exploing Gaity and Obits, page 298 A. When I incease the size of the Sun, Eath s obit changes: the obit is close to the Sun. B. he Moon is pulled out of Eath s obit

More information

7.2.1 Basic relations for Torsion of Circular Members

7.2.1 Basic relations for Torsion of Circular Members Section 7. 7. osion In this section, the geomety to be consideed is that of a long slende cicula ba and the load is one which twists the ba. Such poblems ae impotant in the analysis of twisting components,

More information

Between any two masses, there exists a mutual attractive force.

Between any two masses, there exists a mutual attractive force. YEAR 12 PHYSICS: GRAVITATION PAST EXAM QUESTIONS Name: QUESTION 1 (1995 EXAM) (a) State Newton s Univesal Law of Gavitation in wods Between any two masses, thee exists a mutual attactive foce. This foce

More information

1131 T Question 1

1131 T Question 1 1131 T1 2008 Question 1 ( aks) You ae cycling, on a long staight path, at a constant speed of 6.0.s 1. Anothe cyclist passes you, taelling on the sae path in the sae diection as you, at a constant speed

More information

Radian Measure CHAPTER 5 MODELLING PERIODIC FUNCTIONS

Radian Measure CHAPTER 5 MODELLING PERIODIC FUNCTIONS 5.4 Radian Measue So fa, ou hae measued angles in degees, with 60 being one eolution aound a cicle. Thee is anothe wa to measue angles called adian measue. With adian measue, the ac length of a cicle is

More information

Chapter 2: Basic Physics and Math Supplements

Chapter 2: Basic Physics and Math Supplements Chapte 2: Basic Physics and Math Supplements Decembe 1, 215 1 Supplement 2.1: Centipetal Acceleation This supplement expands on a topic addessed on page 19 of the textbook. Ou task hee is to calculate

More information

Vectors, Vector Calculus, and Coordinate Systems

Vectors, Vector Calculus, and Coordinate Systems Apil 5, 997 A Quick Intoduction to Vectos, Vecto Calculus, and Coodinate Systems David A. Randall Depatment of Atmospheic Science Coloado State Univesity Fot Collins, Coloado 80523. Scalas and vectos Any

More information

06 - ROTATIONAL MOTION Page 1 ( Answers at the end of all questions )

06 - ROTATIONAL MOTION Page 1 ( Answers at the end of all questions ) 06 - ROTATIONAL MOTION Page ) A body A of mass M while falling vetically downwads unde gavity beaks into two pats, a body B of mass ( / ) M and a body C of mass ( / ) M. The cente of mass of bodies B and

More information

1 Dark Cloud Hanging over Twentieth Century Physics

1 Dark Cloud Hanging over Twentieth Century Physics We ae Looking fo Moden Newton by Caol He, Bo He, and Jin He http://www.galaxyanatomy.com/ Wuhan FutueSpace Scientific Copoation Limited, Wuhan, Hubei 430074, China E-mail: mathnob@yahoo.com Abstact Newton

More information

MAGNETIC FIELD INTRODUCTION

MAGNETIC FIELD INTRODUCTION MAGNETIC FIELD INTRODUCTION It was found when a magnet suspended fom its cente, it tends to line itself up in a noth-south diection (the compass needle). The noth end is called the Noth Pole (N-pole),

More information

B. Spherical Wave Propagation

B. Spherical Wave Propagation 11/8/007 Spheical Wave Popagation notes 1/1 B. Spheical Wave Popagation Evey antenna launches a spheical wave, thus its powe density educes as a function of 1, whee is the distance fom the antenna. We

More information

Shree Datta Coaching Classes, Contact No Circular Motion

Shree Datta Coaching Classes, Contact No Circular Motion Shee Datta Coaching Classes, Contact No. 93698036 Pof. Deepak Jawale Cicula Motion Definition : The motion of the paticle along the cicumfeence of a cicle is called as cicula motion. Eg. i) Motion of eath

More information

Chapter 5 Force and Motion

Chapter 5 Force and Motion Chapte 5 Foce and Motion In chaptes 2 and 4 we have studied kinematics i.e. descibed the motion of objects using paametes such as the position vecto, velocity and acceleation without any insights as to

More information

Chapter 5 Force and Motion

Chapter 5 Force and Motion Chapte 5 Foce and Motion In Chaptes 2 and 4 we have studied kinematics, i.e., we descibed the motion of objects using paametes such as the position vecto, velocity, and acceleation without any insights

More information

Torque, Angular Momentum and Rotational Kinetic Energy

Torque, Angular Momentum and Rotational Kinetic Energy Toque, Angula Moentu and Rotational Kinetic Enegy In ou peious exaples that inoled a wheel, like fo exaple a pulley we wee always caeful to specify that fo the puposes of the poble it would be teated as

More information

Cylindrical and Spherical Coordinate Systems

Cylindrical and Spherical Coordinate Systems Clindical and Spheical Coodinate Sstems APPENDIX A In Section 1.2, we leaned that the Catesian coodinate sstem is deined b a set o thee mtall othogonal saces, all o which ae planes. The clindical and spheical

More information

Fu Yuhua 1. Beijing, China

Fu Yuhua 1. Beijing, China 85 An Example of Guiding Scientific Research with hilosophical rinciples Based on Uniqueness of Truth and Neutrosophy eriing Newton's Second Law and the like Fu Yuhua 1 1 CNOOC Research Institute Beijing,

More information

Kinematics of rigid bodies

Kinematics of rigid bodies Kinematics of igid bodies elations between time and the positions, elocities, and acceleations of the paticles foming a igid body. (1) Rectilinea tanslation paallel staight paths Cuilinea tanslation (3)

More information

DEVIL PHYSICS THE BADDEST CLASS ON CAMPUS IB PHYSICS

DEVIL PHYSICS THE BADDEST CLASS ON CAMPUS IB PHYSICS DEVIL PHYSICS THE BADDEST CLASS ON CAMPUS IB PHYSICS TSOKOS LESSON 6- THE LAW OF GRAVITATION Essential Idea: The Newtonian idea of gavitational foce acting between two spheical bodies and the laws of mechanics

More information

AP * PHYSICS B. Circular Motion, Gravity, & Orbits. Teacher Packet

AP * PHYSICS B. Circular Motion, Gravity, & Orbits. Teacher Packet AP * PHYSICS B Cicula Motion, Gavity, & Obits Teache Packet AP* is a tademak of the College Entance Examination Boad. The College Entance Examination Boad was not involved in the poduction of this mateial.

More information

Physics 1114: Unit 5 Hand-out Homework (Answers)

Physics 1114: Unit 5 Hand-out Homework (Answers) Physics 1114: Unit 5 Hand-out Homewok (Answes) Poblem set 1 1. The flywheel on an expeimental bus is otating at 420 RPM (evolutions pe minute). To find (a) the angula velocity in ad/s (adians/second),

More information

Appendix B The Relativistic Transformation of Forces

Appendix B The Relativistic Transformation of Forces Appendix B The Relativistic Tansfomation of oces B. The ou-foce We intoduced the idea of foces in Chapte 3 whee we saw that the change in the fou-momentum pe unit time is given by the expession d d w x

More information

Lab #9: The Kinematics & Dynamics of. Circular Motion & Rotational Motion

Lab #9: The Kinematics & Dynamics of. Circular Motion & Rotational Motion Reading Assignment: Lab #9: The Kinematics & Dynamics of Cicula Motion & Rotational Motion Chapte 6 Section 4 Chapte 11 Section 1 though Section 5 Intoduction: When discussing motion, it is impotant to

More information

A Level Exam-style Practice Paper

A Level Exam-style Practice Paper A Leel Exam-style Pactice Pape a i The peiod is gien by the time lapse between high tide and low tide which is.5 hous. ii The amplitude is gien by half the total displacement and so is 5 m. b The safe

More information

PHYS-3301 Lecture 2. Aug. 31, How Small. is Small? How Fast is Fast? Structure of the course Modern Physics. Relativistic

PHYS-3301 Lecture 2. Aug. 31, How Small. is Small? How Fast is Fast? Structure of the course Modern Physics. Relativistic Quantum (1920 s-) quantum (1927-) PHYS-3301 Lectue 2 Classical phsics Newtonian Mechanics, Themodnamics Statistical Mechanics, El.-Mag. (1905) Mawell s Equations of electomagnetism (1873) Aug. 31, 2017

More information

Name. Date. Period. Engage Examine the pictures on the left. 1. What is going on in these pictures?

Name. Date. Period. Engage Examine the pictures on the left. 1. What is going on in these pictures? AP Physics 1 Lesson 9.a Unifom Cicula Motion Outcomes 1. Define unifom cicula motion. 2. Detemine the tangential velocity of an object moving with unifom cicula motion. 3. Detemine the centipetal acceleation

More information

Determining solar characteristics using planetary data

Determining solar characteristics using planetary data Detemining sola chaacteistics using planetay data Intoduction The Sun is a G-type main sequence sta at the cente of the Sola System aound which the planets, including ou Eath, obit. In this investigation

More information

Department of Physics, Korea University Page 1 of 5

Department of Physics, Korea University Page 1 of 5 Name: Depatment: Student ID #: Notice ˆ + ( 1) points pe coect (incoect) answe. ˆ No penalty fo an unansweed question. ˆ Fill the blank ( ) with ( ) if the statement is coect (incoect). ˆ : coections to

More information

PHYS Summer Professor Caillault Homework Solutions. Chapter 5

PHYS Summer Professor Caillault Homework Solutions. Chapter 5 PHYS 1111 - Summe 2007 - Pofesso Caillault Homewok Solutions Chapte 5 7. Pictue the Poblem: The ball is acceleated hoizontally fom est to 98 mi/h ove a distance of 1.7 m. Stategy: Use equation 2-12 to

More information

OSCILLATIONS AND GRAVITATION

OSCILLATIONS AND GRAVITATION 1. SIMPLE HARMONIC MOTION Simple hamonic motion is any motion that is equivalent to a single component of unifom cicula motion. In this situation the velocity is always geatest in the middle of the motion,

More information

UCSD Phys 4A Intro Mechanics Winter 2016 Ch 5 Solutions

UCSD Phys 4A Intro Mechanics Winter 2016 Ch 5 Solutions UCSD Phs 4 Into Mechanics Winte 016 Ch 5 Solutions 0. Since the uppe bloc has a highe coefficient of iction, that bloc will dag behind the lowe bloc. Thus thee will be tension in the cod, and the blocs

More information

PHYS Summer Professor Caillault Homework Solutions. Chapter 9

PHYS Summer Professor Caillault Homework Solutions. Chapter 9 PHYS - Summe 007 - Pofesso Caillault Homewok Solutions Chapte 9 3. Pictue the Poblem The owne walks slowly towad the notheast while the cat uns eastwad and the dog uns nothwad. Stategy Sum the momenta

More information

Section 8.2 Polar Coordinates

Section 8.2 Polar Coordinates Section 8. Pola Coodinates 467 Section 8. Pola Coodinates The coodinate system we ae most familia with is called the Catesian coodinate system, a ectangula plane divided into fou quadants by the hoizontal

More information

Chapter 6 Balanced Incomplete Block Design (BIBD)

Chapter 6 Balanced Incomplete Block Design (BIBD) Chapte 6 Balanced Incomplete Bloc Design (BIBD) The designs lie CRD and RBD ae the complete bloc designs We now discuss the balanced incomplete bloc design (BIBD) and the patially balanced incomplete bloc

More information