Circle correct course: PHYS 1P21 or PHYS 1P91 BROCK UNIVERSITY. Course: PHYS 1P21/1P91 Number of students: 260 Examination date: 10 November 2014
|
|
- Allen Douglas
- 5 years ago
- Views:
Transcription
1 Tutorial #: Circle correct course: PHYS P or PHYS P9 Name: Student #: BROCK UNIVERSITY Test 5: November 04 Number of pages: 5 + formula sheet Course: PHYS P/P9 Number of students: 0 Examination date: 0 November 04 Time of Examination: 3:00 3:50 Instructor: S. D Agostino No aids are permitted except for a non-programmable, non-graphics calculator. Solve all problems in the space provided. Total number of marks: 0. [ point] Ball A has mass 0 kg and Ball B has mass kg. The two balls are at rest 5 m apart. The centre of mass of the two balls is (a) closer to Ball A. (b) closer to Ball B. (c) half-way between the two balls. (d) [The centre of mass makes sense for only a single object, not two objects.]. [ point] The net external force on a system is not zero. (a) The energy and momentum of the system are conserved. (b) The energy of the system is conserved but the momentum of the system is not conserved. (c) The momentum of the system is conserved but the energy of the system is not conserved. (d) Neither the energy nor the momentum of the system are conserved. (e) [Not enough information is given.] 3. [ point] A person carries a book while walking in a straight line at a constant speed on level ground. The book s distance from the ground remains constant. The work done by the person on the book is (a) positive. (b) negative. (c) zero. (d) [It depends on which is the positive direction.] (e) [It depends on the relative magnitudes of the weight of the book and the normal force exerted by the person on the book.]
2 4. [ point] Alice throws a ball to her friend Basil. As Basil catches the ball, the work he does on the ball is (a) positive. (b) negative. (c) zero. (d) [It depends on whether the direction of her throw is the positive direction or the negative direction.] 5. [4 points] Block moves to the right with speed.7 m/s and Block moves to the left with speed 4.8 m/s. The two blocks collide head-on and stick together. The mass of Block is three times the mass of Block. Determine the velocity of the blocks just after the collision. Solution: Draw a diagram! I choose to the right as the positive direction. Let v represent the velocity of the blocks just after they stick together, and let v and v respectively represent the velocities of the two blocks before the collision. Then by the principle of conservation of momentum, (m + m ) v = m v + m v v = m v + m v m + m Now use the fact that m = 3m, to obtain v = m v + 3m v m + 3m v = m (v + 3v ) 4m v = v + 3v ( 4.8) v = 4 v =.93 m/s The speed of the two blocks just after the collision is.93 m/s, and they move to the left.. [4 points] A block of mass 0.4 kg slides up a ramp. The block has an initial speed of.4 m/s and friction in the ramp causes 5.8 J of the block s mechanical energy to be converted to thermal energy by the time it stops. What is the vertical component of the block s displacement by the time it stops? Solution: Draw a diagram! Use i to label the initial position of the block and use f to label the final position of the block. Let E represent the amount of mechanical
3 energy that is transformed into thermal energy by the end of the motion. Then by the principle of conservation of energy, U f + K f + E = U i + K i U f U i = K i K f E mgy f mgy i = mv i mv f E mg [y f y i ] = mv i mv f E mg y = mv i mv f E mg y = mv i m(0) E mg y = mv i E y = mv i E mg y = (0.4)(.4) (5.8) (0.4)(9.8) y = 0. m Thus, as the block slides up the ramp its vertical component of displacement is cm. 7. [4 points] A pendulum consists of a block of mass 0.9 kg hanging from one end of a string. m long. The other end of the string is attached to the ceiling. When the block is at rest at its lowest point it is given a horizontal velocity v. The block rises and eventually stops momentarily when the string makes an angle 4 relative to the vertical. Determine v. Solution: Draw a diagram! Use i to label the initial position of the block and use f to label the final position of the block. Because the tension in the string is perpendicular to the motion at each moment, tension does no work on the block. (The tension is directed radially, towards the centre of the circle on which the block moves, whereas the velocity of the block is always directed tangent to the circle.) Thus, mechanical energy is conserved.
4 By the principle of conservation of mechanical energy, U i + K i = U f + K f K i = U f U i + K f mv i = mgy f mgy i + mv f mv i = mg [y f y i ] + mv f mv i = mg y + mv f vi = g y + vf vi = g y + (0) v = g y In your diagram, sketch a horizontal line through the final position of the block. Use trigonometry in the resulting right triangle to show that y =. ( cos 4 ) Now insert this expression for y into the conservation of mechanical energy equation to obtain an expression for v: v = g(.) ( cos 4 ) v = (9.8)(.) ( cos 4 ) v =.4 m/s The initial speed of the block is.4 m/s. 8. [4 points] Block moves East with speed 8.3 m/s and Block is initially at rest. After the two blocks collide elastically, Block moves 30 North of East. The mass of Block is twice the mass of Block. Determine the speed of Block and the velocity of Block just after the collision. Solution: Draw a diagram! I choose the positive directions to be North and East, which is the usual math-class convention that we have been adopting almost always in lectures. Let v represent the velocity of the first block after the collision and let v represent the velocity of the second block after the collision. Let θ represent the angle of v relative to the East direction, measured South of East. In simplifying the following equations, we make use of the fact that m = m. The x-component of momentum is conserved, so m (8.3) = m v cos 30 + m v cos θ ( ) 3 m (8.3) = m v + m v cos θ ( ) = v + v cos θ (8.3) = 3v + 4v cos θ ()
5 The y-component of momentum is conserved, so 0 = m v sin 30 m v sin θ ( ) 0 = m v m v sin θ 0 = v 4v sin θ v = 4v sin θ () Kinetic energy is conserved, because the collision is elastic, so m (8.3) = m v + m v m (8.3) = m v + m v (8.3) = v + v (8.3) v = v (3) Now we are faced with three equations that we must solve to obtain values for the three unknown quantities, v, v, and θ. Following the strategy we used in lecture, let s first eliminate θ from the first two equations. The best way to do this is to solve equation () for cos θ, solve equation () for sin θ, and then make use of the basic trigonometric identity, cos θ + sin θ = : cos θ = (8.3) 3v 4v sin θ = v 4v Squaring and adding together each side of the previous equation, we obtain ( cos θ + sin (8.3) ) ( ) 3v v θ = + 4v 4v ( ) (8.3) 3v = + v v v ( ) (8.3) 3v + v = v ( v = (8.3) ) 3v + v ( v = 4(8.3) 4(8.3) ) 3v + 3v + v v = 4(8.3) 4(8.3) 3v + 4v 8(v ) = 4(8.3) 4(8.3) 3v + 4v Now substitute for v in the previous equation using the expression from equation (3) to obtain one quadratic equation for v, which can then be placed in standard form
6 and solved using the quadratic formula: 8 [ (8.3) v ] = 4(8.3) 4(8.3) 3v + 4v 8(8.3) 8v = 4(8.3) 4(8.3) 3v + 4v 8(8.3) = 4(8.3) 4(8.3) 3v + v 0 = 4(8.3) 4(8.3) 3v + v 0 = v 4(8.3) 3v 4(8.3) 0 = 3v 8.3 3v (8.3) v = ± (8.3) (3) + 4(3)(8.3) (3) v = ± 3(8.3) + (8.3) v = ± [(8.3) ][3 + ] v = ± (8.3) 5 v = ± v = 8.3[ 3 ± 5] v = 8.3[ 3 + 5] v = 7.75 m/s Note that the negative solution is rejected because we are told the final direction of the first block. Now substitute the value for v into equation (3) to obtain v = (8.3) v v = (8.3) (7.75) v = (8.3) (7.75) (8.3) (7.75) v = v =.09 m/s Finally, to determine the angle θ, substitute the values of v and v into equation ()
7 to obtain v = 4v sin θ sin θ = v 4v sin θ = (.09) sin θ = 0.95 θ = 7.8 Thus, the speed of the first block just after the collision is 7.75 m/s and the velocity of the second block just after the collision is.09 m/s E7.8 S.
Circle correct course: PHYS 1P21 or PHYS 1P91 BROCK UNIVERSITY
Tutorial #: Circle correct course: PHYS 1P21 or PHYS 1P91 Name: Student #: BROCK UNIVERSITY Test 7: November 2015 Number of pages: 5 Course: PHYS 1P21/1P91 Number of students: 218 Examination date: 17
More informationMultiple choice questions [60 points]
Multiple choice questions [60 points] Answer all of the following questions. Read each question carefully. Fill the correct bubble on your scantron sheet. Each correct answer is worth 4 points. Each question
More informationBROCK UNIVERSITY SOLUTIONS. 1. [1 point] A car is driving at a constant speed on a circular road. The force on a passenger in the car is
BROCK UNIVERSITY Test 2: October 2014 Number of pages: 4 + formula sheet Course: PHYS 1P21/1P91 Number of students: 280 Examination date: 6 October 2014 Time of Examination: 13:00 13:50 Instructor: S.
More informationBROCK UNIVERSITY. Course: PHYS 1P21/1P91 Number of students: 234 Examination date: 5 December 2014 Number of hours: 3
Name: Student #: BROCK UNIVERSITY Page 1 of 12 Final Exam: December 2014 Number of pages: 12 (+ formula sheet) Course: PHYS 1P21/1P91 Number of students: 234 Examination date: 5 December 2014 Number of
More informationUNIVERSITY OF SASKATCHEWAN Department of Physics and Engineering Physics
UNIVERSITY OF SASKATCHEWAN Department of Physics and Engineering Physics Physics 115.3 Physics and the Universe FINAL EXAMINATION December 9, 011 NAME: (Last) Please Print (Given) Time: 3 hours STUDENT
More informationREVISING MECHANICS (LIVE) 30 JUNE 2015 Exam Questions
REVISING MECHANICS (LIVE) 30 JUNE 2015 Exam Questions Question 1 (Adapted from DBE November 2014, Question 2) Two blocks of masses 20 kg and 5 kg respectively are connected by a light inextensible string,
More informationPHYSICS 111 SPRING EXAM 2: March 7, 2017; 8:15-9:45 pm
PHYSICS 111 SPRING 017 EXAM : March 7, 017; 8:15-9:45 pm Name (printed): Recitation Instructor: Section # INSTRUCTIONS: This exam contains 0 multiple-choice questions plus 1 extra credit question, each
More informationWork and energy. 15 m. c. Find the work done by the normal force exerted by the incline on the crate.
Work and energy 1. A 10.0-kg crate is pulled 15.0 m up along a frictionless incline as shown in the figure below. The crate starts at rest and has a final speed of 6.00 m/s. motor 15 m 5 a. Draw the free-body
More informationFamily Name: Given Name: Student number:
Family Name: Given Name: Student number: Academic Honesty: In accordance with the Academic Honesty Policy (T0.02), academic dishonesty in any form will not be tolerated. Prohibited acts include, but are
More informationOn my honor as a Texas A&M University student, I will neither give nor receive unauthorized help on this exam.
Physics 201, Exam 2 Name (printed) On my honor as a Texas A&M University student, I will neither give nor receive unauthorized help on this exam. Name (signed) The multiple-choice problems carry no partial
More informationPHYSICS 221, FALL 2011 EXAM #2 SOLUTIONS WEDNESDAY, NOVEMBER 2, 2011
PHYSICS 1, FALL 011 EXAM SOLUTIONS WEDNESDAY, NOVEMBER, 011 Note: The unit vectors in the +x, +y, and +z directions of a right-handed Cartesian coordinate system are î, ĵ, and ˆk, respectively. In this
More informationLecture 18. Newton s Laws
Agenda: l Review for exam Lecture 18 l Assignment: For Monday, Read chapter 14 Physics 207: Lecture 18, Pg 1 Newton s Laws Three blocks are connected on the table as shown. The table has a coefficient
More informationElementary Physics October 8, 2007
INSTRUCTIONS: For for the multiple choice questions 1 8, you will be scored only on the basis of choosing only the one correct answer for full credit. No partial credit will be given. For questions 9 10,
More informationI pt mass = mr 2 I sphere = (2/5) mr 2 I hoop = mr 2 I disk = (1/2) mr 2 I rod (center) = (1/12) ml 2 I rod (end) = (1/3) ml 2
Fall 008 RED Barcode Here Physics 105, sections 1 and Exam 3 Please write your CID Colton -3669 3 hour time limit. One 3 5 handwritten note card permitted (both sides). Calculators permitted. No books.
More informationBROCK UNIVERSITY. Circle correct course: PHYS 1P21 or PHYS 1P91. Name: Student #:
Circle correct course: PHYS 1P21 or PHYS 1P91 Name: Student #: BROCK UNIVERSITY Test 6: June 2016 Number of pages: 6 Course: PHYS 1P21/1P91 Number of students: 111 Examination date: 14 June 2016 Time of
More informationEnergy in Collisions Problems AP Physics C
1. A bullet of mass m and velocity v 0 is fired toward a block of mass 4m. The block is initially at rest on a v frictionless horizontal surface. The bullet penetrates the block and emerges with a velocity
More informationPhysics 5A Final Review Solutions
Physics A Final Review Solutions Eric Reichwein Department of Physics University of California, Santa Cruz November 6, 0. A stone is dropped into the water from a tower 44.m above the ground. Another stone
More informationPHYS 124 Section A1 Mid-Term Examination Spring 2006 SOLUTIONS
PHYS 14 Section A1 Mid-Term Examination Spring 006 SOLUTIONS Name Student ID Number Instructor Marc de Montigny Date Monday, May 15, 006 Duration 60 minutes Instructions Items allowed: pen or pencil, calculator
More informationt = g = 10 m/s 2 = 2 s T = 2π g
Annotated Answers to the 1984 AP Physics C Mechanics Multiple Choice 1. D. Torque is the rotational analogue of force; F net = ma corresponds to τ net = Iα. 2. C. The horizontal speed does not affect the
More informationPhysics. Impulse & Momentum
Physics Impulse & Momentum Warm up - Write down everything you know about impulse and momentum. Objectives Students will learn the definitions and equations for impulse, momentum, elastic and inelastic
More informationfrictionless horizontal surface. The bullet penetrates the block and emerges with a velocity of o
AP Physics Free Response Practice Momentum and Impulse 1976B2. A bullet of mass m and velocity v o is fired toward a block of mass 4m. The block is initially at rest on a v frictionless horizontal surface.
More informationMultiple-Choice questions
AP Physics I Work and Energy Multiple-Choice questions 1. A force F is at an angle θ above the horizontal and is used to pull a heavy suitcase of weight mg a distance d along a level floor at constant
More informationWiley Plus. Final Assignment (5) Is Due Today: Before 11 pm!
Wiley Plus Final Assignment (5) Is Due Today: Before 11 pm! Final Exam Review December 9, 009 3 What about vector subtraction? Suppose you are given the vector relation A B C RULE: The resultant vector
More informationAnnouncements. There will still be a WebAssign due this Friday, the last before the midterm.
Announcements THERE WILL BE NO CLASS THIS FRIDAY, MARCH 5 (We are 1 full lecture ahead of the syllabus, so we will still have review/problem solving on March 7 and 9). There will still be a WebAssign due
More informationCenter of Mass & Linear Momentum
PHYS 101 Previous Exam Problems CHAPTER 9 Center of Mass & Linear Momentum Center of mass Momentum of a particle Momentum of a system Impulse Conservation of momentum Elastic collisions Inelastic collisions
More informationShow all work in answering the following questions. Partial credit may be given for problems involving calculations.
Physics 3210, Spring 2018 Final Exam Name: Signature: UID: Please read the following before continuing: Show all work in answering the following questions. Partial credit may be given for problems involving
More informationSt. Joseph s Anglo-Chinese School
Time allowed:.5 hours Take g = 0 ms - if necessary. St. Joseph s Anglo-Chinese School 008 009 First Term Examination Form 6 ASL Physics Section A (40%) Answer ALL questions in this section. Write your
More information= y(x, t) =A cos (!t + kx)
A harmonic wave propagates horizontally along a taut string of length L = 8.0 m and mass M = 0.23 kg. The vertical displacement of the string along its length is given by y(x, t) = 0. m cos(.5 t + 0.8
More informationUNIVERSITY OF SASKATCHEWAN Department of Physics and Engineering Physics
UNIVERSITY OF SASKATCHEWAN Department of Physics and Engineering Physics Physics 111.6 MIDTERM TEST #2 November 15, 2001 Time: 90 minutes NAME: STUDENT NO.: (Last) Please Print (Given) LECTURE SECTION
More information11. (7 points: Choose up to 3 answers) What is the tension,!, in the string? a.! = 0.10 N b.! = 0.21 N c.! = 0.29 N d.! = N e.! = 0.
A harmonic wave propagates horizontally along a taut string of length! = 8.0 m and mass! = 0.23 kg. The vertical displacement of the string along its length is given by!!,! = 0.1!m cos 1.5!!! +!0.8!!,
More informationPotential Energy. Serway 7.6, 7.7;
Potential Energy Conservative and non-conservative forces Gravitational and elastic potential energy Mechanical Energy Serway 7.6, 7.7; 8.1 8.2 Practice problems: Serway chapter 7, problems 41, 43 chapter
More informationAP Physics C. Momentum. Free Response Problems
AP Physics C Momentum Free Response Problems 1. A bullet of mass m moves at a velocity v 0 and collides with a stationary block of mass M and length L. The bullet emerges from the block with a velocity
More informationAP Physics Review FRQ 2015
AP Physics Review FRQ 2015 2015 Mech 1. A block of mass m is projected up from the bottom of an inclined ramp with an initial velocity of magnitude v 0. The ramp has negligible friction and makes an angle
More informationFinal Exam April 26, 2016
PHYS 050 Spring 016 Name: Final Exam April 6, 016 INSTRUCTIONS: a) No books or notes are permitted. b) You may use a calculator. c) You must solve all problems beginning with the equations on the Information
More informationPHYS 1303 Final Exam Example Questions
PHYS 1303 Final Exam Example Questions 1.Which quantity can be converted from the English system to the metric system by the conversion factor 5280 mi f 12 f in 2.54 cm 1 in 1 m 100 cm 1 3600 h? s a. feet
More informationExam #2, Chapters 5-7 PHYS 101-4M MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.
Exam #2, Chapters 5-7 Name PHYS 101-4M MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) The quantity 1/2 mv2 is A) the potential energy of the object.
More information(1) +0.2 m/s (2) +0.4 m/s (3) +0.6 m/s (4) +1 m/s (5) +0.8 m/s
77777 77777 Instructor: Biswas/Ihas/Whiting PHYSICS DEPARTMENT PHY 2053 Exam 2, 120 minutes November 13, 2009 Name (print, last first): Signature: On my honor, I have neither given nor received unauthorized
More informationy(t) = y 0 t! 1 2 gt 2. With y(t final ) = 0, we can solve this for v 0 : v 0 A ĵ. With A! ĵ =!2 and A! = (2) 2 + (!
1. The angle between the vector! A = 3î! 2 ĵ! 5 ˆk and the positive y axis, in degrees, is closest to: A) 19 B) 71 C) 90 D) 109 E) 161 The dot product between the vector! A = 3î! 2 ĵ! 5 ˆk and the unit
More informationPhysics 53 Summer Exam I. Solutions
Exam I Solutions In questions or problems not requiring numerical answers, express the answers in terms of the symbols for the quantities given, and standard constants such as g. In numerical questions
More informationWelcome back to Physics 211
Welcome back to Physics 211 Today s agenda: Circular motion Impulse and momentum 08-2 1 Current assignments Reading: Chapter 9 in textbook Prelecture due next Thursday HW#8 due NEXT Friday (extension!)
More informationThe next two questions pertain to the situation described below.
PHYS 101 Exams PHYS 101 SP17 Exam 1 PRINT (A) The next two questions pertain to the situation described below. A boat is crossing a river with a speed v b = 8.3 m/s relative to the water. The river is
More informationExtra Circular Motion Questions
Extra Circular Motion Questions Elissa is at an amusement park and is driving a go-cart around a challenging track. Not being the best driver in the world, Elissa spends the first 10 minutes of her go-cart
More informationPhysics 1401V October 28, 2016 Prof. James Kakalios Quiz No. 2
This is a closed book, closed notes, quiz. Only simple (non-programmable, nongraphing) calculators are permitted. Define all symbols and justify all mathematical expressions used. Make sure to state all
More informationWebreview practice test. Forces (again)
Please do not write on test. ID A Webreview 4.3 - practice test. Forces (again) Multiple Choice Identify the choice that best completes the statement or answers the question. 1. A 5.0-kg mass is suspended
More informationA. B. C. D. E. v x. ΣF x
Q4.3 The graph to the right shows the velocity of an object as a function of time. Which of the graphs below best shows the net force versus time for this object? 0 v x t ΣF x ΣF x ΣF x ΣF x ΣF x 0 t 0
More informationPhysics 50 Winter 2016 Final Exam
Physics 50 Winter 2016 Final Exam Name: Mar 24, 2016 Please show your work! Answers are not complete without clear reasoning. When asked for an expression, you must give your answer in terms of the variables
More informationUNIVERSITY OF SASKATCHEWAN Department of Physics and Engineering Physics
UNIVERSITY OF SASKATCHEWAN Department of Physics and Engineering Physics Physics 115.3 MIDTERM TEST Time: 90 minutes NAME: (Last) Please Print (Given) STUDENT NO.: LECTURE SECTION (please check): 01 A.
More informationWelcome back to Physics 211
Welcome back to Physics 211 Today s agenda: Impulse and momentum 09-2 1 Current assignments Reading: Chapter 10 in textbook Prelecture due next Tuesday HW#8 due this Friday at 5 pm. 09-2 2 9-2.1 A crash
More informationMechanics. Time (s) Distance (m) Velocity (m/s) Acceleration (m/s 2 ) = + displacement/time.
Mechanics Symbols: Equations: Kinematics The Study of Motion s = distance or displacement v = final speed or velocity u = initial speed or velocity a = average acceleration s u+ v v v u v= also v= a =
More informationNovember 16, 2006 PHYS101 Test2 - Free Response Section Page 3
Last Name: First Name: Print your LAST and FIRST name on the front of your blue book, on this question sheet, the multiple-choice question sheet and the multiple-choice answer sheet. TIME ALLOWED 90 MINUTES
More information4 A mass-spring oscillating system undergoes SHM with a period T. What is the period of the system if the amplitude is doubled?
Slide 1 / 52 1 A block with a mass M is attached to a spring with a spring constant k. The block undergoes SHM. Where is the block located when its velocity is a maximum in magnitude? A 0 B + or - A C
More informationExam 3 Practice Solutions
Exam 3 Practice Solutions Multiple Choice 1. A thin hoop, a solid disk, and a solid sphere, each with the same mass and radius, are at rest at the top of an inclined plane. If all three are released at
More informationPH211 Chapter 10 Solutions
PH Chapter 0 Solutions 0.. Model: We will use the particle model for the bullet (B) and the running student (S). Solve: For the bullet, K B = m v = B B (0.00 kg)(500 m/s) = 50 J For the running student,
More informationMULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.
Common Quiz Mistakes / Practice for Final Exam Name MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) A ball is thrown directly upward and experiences
More informationPhysics 125: Classical Physics A. 1 Practice Problems for Midterm Exam 1
Physics 125: Classical Physics A 1 Practice Problems for Midterm Exam 1 Problem 1 The Figure 1 depicts velocity as a function of time for a short run. Find: a) The acceleration at t = 5 seconds. b) The
More informationPhysics 121, Sections 1 and 2, Winter 2011 Instructor: Scott Bergeson Exam #3 April 16 April 21, 2011 RULES FOR THIS TEST:
Physics 121, Sections 1 and 2, Winter 2011 Instructor: Scott Bergeson Exam #3 April 16 April 21, 2011 RULES FOR THIS TEST: This test is closed book. You may use a dictionary. You may use your own calculator
More informationAP Physics C: Mechanics Practice (Systems of Particles and Linear Momentum)
AP Physics C: Mechanics Practice (Systems of Particles and Linear Momentum) 1980M2. A block of mass m slides at velocity v o across a horizontal frictionless surface toward a large curved movable ramp
More informationPhysics 103, Practice Midterm Exam 2
Physics 103, Practice Midterm Exam 2 1) A rock of mass m is whirled in a horizontal circle on a string of length L. The period of its motion is T seconds. If the length of the string is increased to 4L
More informationv (m/s) 10 d. displacement from 0-4 s 28 m e. time interval during which the net force is zero 0-2 s f. average velocity from 0-4 s 7 m/s x (m) 20
Physics Final Exam Mechanics Review Answers 1. Use the velocity-time graph below to find the: a. velocity at 2 s 6 m/s v (m/s) 1 b. acceleration from -2 s 6 c. acceleration from 2-4 s 2 m/s 2 2 4 t (s)
More information---- WITH SOLUTIONS ----
PHYS 101 MIDTERM October 24 th, 2008 ---- WITH SOLUTIONS ---- The exam comprises two parts: 8 short-answer questions, and 4 problems. A formula sheet is attached to the back of the exam. Calculators are
More information8.01x Classical Mechanics, Fall 2016 Massachusetts Institute of Technology. Problem Set 8
8.01x Classical Mechanics, Fall 2016 Massachusetts Institute of Technology 1. Spring-Loop-the-Loop Problem Set 8 A small block of mass m is pushed against a spring with spring constant k and held in place
More informationThe graph shows how an external force applied to an object of mass 2.0 kg varies with time. The object is initially at rest.
T2-2 [195 marks] 1. The graph shows how an external force applied to an object of mass 2.0 kg varies with time. The object is initially at rest. What is the speed of the object after 0.60 s? A. 7.0 ms
More informationConcepts in Physics. Friday, October 16th
1206 - Concepts in Physics Friday, October 16th Notes Assignment #4 due Wednesday, October 21 st in class (no later than noon) There are still assignments #1 and #2 in my office to be picked up... If you
More informationW = 750 m. PHYS 101 SP17 Exam 1 BASE (A) PHYS 101 Exams. The next two questions pertain to the situation described below.
PHYS 101 Exams PHYS 101 SP17 Exa BASE (A) The next two questions pertain to the situation described below. A boat is crossing a river with a speed to the water. The river is flowing at a speed W = 750
More informationFamily Name (Please print Given Name(s) Student Number Practical Group in BLOCK LETTERS) as on student card Code
Family Name (Please print Given Name(s) Student Number Practical Group in BLOCK LETTERS) as on student card Code PHY131H1F - SUMMER Term Test version 1 Thursday, May 27, 2010 Duration: 80 minutes PLEASE
More informationPhysics 2514 Lecture 26
Physics 2514 Lecture 26 P. Gutierrez Department of Physics & Astronomy University of Oklahoma Physics 2514 p. 1/12 Review We have defined the following using Newton s second law of motion ( F net = d p
More informationPhysics 2514 Lecture 34
Physics 2514 Lecture 34 P. Gutierrez Department of Physics & Astronomy University of Oklahoma Physics 2514 p. 1/13 Information Information needed for the exam Exam will be in the same format as the practice
More information(a) On the dots below that represent the students, draw and label free-body diagrams showing the forces on Student A and on Student B.
2003 B1. (15 points) A rope of negligible mass passes over a pulley of negligible mass attached to the ceiling, as shown above. One end of the rope is held by Student A of mass 70 kg, who is at rest on
More informationHATZIC SECONDARY SCHOOL
HATZIC SECONDARY SCHOOL PROVINCIAL EXAMINATION ASSIGNMENT VECTOR DYNAMICS MULTIPLE CHOICE / 45 OPEN ENDED / 75 TOTAL / 120 NAME: 1. Unless acted on by an external net force, an object will stay at rest
More informationPhysics 7A Lecture 2 Fall 2014 Midterm 2 Solutions. November 9, 2014
Physics 7A Lecture 2 Fall 204 Midterm 2 Solutions November 9, 204 Lecture 2 Midterm 2 Problem Solution Our general strategy is to use energy conservation, keeping in mind that the force of friction will
More informationSummer Physics 41 Pretest. Shorty Shorts (2 pts ea): Circle the best answer. Show work if a calculation is required.
Summer Physics 41 Pretest Name: Shorty Shorts (2 pts ea): Circle the best answer. Show work if a calculation is required. 1. An object hangs in equilibrium suspended by two identical ropes. Which rope
More informationM1 January An easy question to start the paper. Applying conservation of momentum where u is the initial velocity and v the final velocity.
Page 1 M1 January 003 1. A railway truck P of mass 000 kg is moving along a straight horizontal track with speed 10 ms -1. The truck P collides with a truck Q of mass 3000 kg, which is at rest on the same
More informationSolutions to Homework Set #9 Phys2414 Fall 2005
Solution Set #9 Solutions to Homework Set #9 Phys44 Fall 005 Note: The numbers in the boxes correspond to those that are generated by WebAssign. The numbers on your individual assignment will vary. Any
More informationRecall: Gravitational Potential Energy
Welcome back to Physics 15 Today s agenda: Work Power Physics 15 Spring 017 Lecture 10-1 1 Recall: Gravitational Potential Energy For an object of mass m near the surface of the earth: U g = mgh h is height
More informationPHYSICS 1. Section I 40 Questions Time 90 minutes. g = 10 m s in all problems.
Note: To simplify calculations, you may use PHYSICS 1 Section I 40 Questions Time 90 minutes 2 g = 10 m s in all problems. Directions: Each of the questions or incomplete statements below is followed by
More informationMemorial University of Newfoundland. Physics Final Examination. December 11, 2006
Memorial University of Newfoundland Physics 1020 Final Examination December 11, 2006 Time 2 Hours Name MUN NO. Instructor INSTRUCTIONS: 1. Non-programmable calculators are permitted. Programmable ones
More informationSimple Practical Mechanics. Lesley Swarbrick FMSP associate
Simple Practical Mechanics Lesley Swarbrick FMSP associate Practical Approaches to Mechanics Mechanics is Applied Mathematics Mechanics Experiments No Special Equipment Kinematics Resultant force: what
More informationA) 4.0 m/s B) 5.0 m/s C) 0 m/s D) 3.0 m/s E) 2.0 m/s. Ans: Q2.
Coordinator: Dr. W. Al-Basheer Thursday, July 30, 2015 Page: 1 Q1. A constant force F ( 7.0ˆ i 2.0 ˆj ) N acts on a 2.0 kg block, initially at rest, on a frictionless horizontal surface. If the force causes
More informationPSI AP Physics I Work and Energy
PSI AP Physics I Work and Energy Multiple-Choice questions 1. A driver in a 2000 kg Porsche wishes to pass a slow moving school bus on a 4 lane road. What is the average power in watts required to accelerate
More informationTwentieth SLAPT Physics Contest Southern Illinois University Edwardsville April 30, Mechanics Test
Twentieth SLAPT Physics Contest Southern Illinois University Edwardsville April 30, 2005 Mechanics Test Please answer the following questions on the supplied answer sheet. You may write on this test booklet,
More informationExam II. Spring 2004 Serway & Jewett, Chapters Fill in the bubble for the correct answer on the answer sheet. next to the number.
Agin/Meyer PART I: QUALITATIVE Exam II Spring 2004 Serway & Jewett, Chapters 6-10 Assigned Seat Number Fill in the bubble for the correct answer on the answer sheet. next to the number. NO PARTIAL CREDIT:
More informationPhys 111: Supplementary Exercises
Phys 111 Spring 2015 Phys 111: Supplementary Exercises 1 Ant on a stick Anantwalksalongastraightstick. Thegraph illustrates the ant s position vs. time. Answer the following, giving explanations for each
More informationOn my honor, I have neither given nor received unauthorized aid on this examination.
Instructor(s): Profs. D. Reitze, H. Chan PHYSICS DEPARTMENT PHY 2053 Exam 2 April 2, 2009 Name (print, last first): Signature: On my honor, I have neither given nor received unauthorized aid on this examination.
More informationName: Class: Date: d. none of the above
Name: Class: Date: H Phys quiz Multiple Choice Identify the choice that best completes the statement or answers the question. 1. Which of the following is the cause of an acceleration? a. speed b. inertia
More informationThe net force on a moving object is suddenly reduced to zero. As a consequence, the object
The net force on a moving object is suddenly reduced to zero. As a consequence, the object (A) stops abruptly (B) stops during a short time interval (C) changes direction (D) continues at a constant velocity
More information*************************************************************************
Your Name: TEST #2 Print clearly. On the Scantron, fill out your student ID, leaving the first column empty and starting in the second column. Also write your name, class time (11:30 or 12:30), and Test
More informationTwo Hanging Masses. ) by considering just the forces that act on it. Use Newton's 2nd law while
Student View Summary View Diagnostics View Print View with Answers Edit Assignment Settings per Student Exam 2 - Forces [ Print ] Due: 11:59pm on Tuesday, November 1, 2011 Note: To underst how points are
More informationPhysics 2101, Exam #2, Spring 2010
Physics 2101, Exam #2, Spring 2010 March 3, 2010 Name: ID#: Section: (Circle one) 1 (Rupnik, MWF 8:40 AM) 5 (Jin, TTh 12:10) 2 (Rupnik, MWF 10:40 AM) 6 (González, TTh 4:40) 3 (Zhang, MWF 12:40 PM) 7(Sprunger,
More informationSolutionbank M1 Edexcel AS and A Level Modular Mathematics
Page of Solutionbank M Exercise A, Question A particle P of mass 0. kg is moving along a straight horizontal line with constant speed m s. Another particle Q of mass 0.8 kg is moving in the same direction
More informationPhysics 101. Hour Exam I Fall Last Name: First Name Network-ID Discussion Section: Discussion TA Name:
Last Name: First Name Network-ID Discussion Section: Discussion TA Name: Instructions Turn off your cell phone and put it away. This is a closed book exam. You have ninety (90) minutes to complete it.
More informationAP Mechanics Summer Assignment
2012-2013 AP Mechanics Summer Assignment To be completed in summer Submit for grade in September Name: Date: Equations: Kinematics (For #1 and #2 questions: use following equations only. Need to show derivation
More informationPhysics 101. Hour Exam I Fall Last Name: First Name Network-ID Discussion Section: Discussion TA Name:
Last Name: First Name Network-ID Discussion Section: Discussion TA Name: Instructions Turn off your cell phone and put it away. Keep your calculator on your own desk. Calculators cannot be shared. This
More informationPhysics 2101, Final Exam, Spring 2007
Physics 2101, Final Exam, Spring 2007 May 10, 2007 Name : Section: (Circle one) 1 (Rupnik, MWF 7:40am) 2 (Giammanco, MWF 9:40am) 3 (Rupnik, MWF 11:40am) 4 (Rupnik, MWF 2:40pm) 5 (Giammanco, TTh 10:40am)
More informationEnd-of-Chapter Exercises
End-of-Chapter Exercises Exercises 1 12 are conceptual questions that are designed to see if you have understood the main concepts of the chapter. 1. When a spring is compressed 10 cm, compared to its
More informationCP Snr and Hon Freshmen Study Guide
CP Snr and Hon Freshmen Study Guide Multiple Choice Identify the choice that best completes the statement or answers the question. 1. Displacement is which of the following types of quantities? a. vector
More informationYou may use g = 10 m/s 2, sin 60 = 0.87, and cos 60 = 0.50.
1. A child pulls a 15kg sled containing a 5kg dog along a straight path on a horizontal surface. He exerts a force of a 55N on the sled at an angle of 20º above the horizontal. The coefficient of friction
More informationIB Questionbank Physics NAME. IB Physics 2 HL Summer Packet
IB Questionbank Physics NAME IB Physics 2 HL Summer Packet Summer 2017 About 2 hours 77 marks Please complete this and hand it in on the first day of school. - Mr. Quinn 1. This question is about collisions.
More informationAP PHYSICS 1 UNIT 4 / FINAL 1 PRACTICE TEST
AP PHYSICS 1 UNIT 4 / FINAL 1 PRACTICE TEST NAME FREE RESPONSE PROBLEMS Put all answers on this test. Show your work for partial credit. Circle or box your answers. Include the correct units and the correct
More informationDecember 2015 Exam Review July :39 AM. Here are solutions to the December 2014 final exam.
December 2015 Exam Review July-15-14 10:39 AM Here are solutions to the December 2014 final exam. 1. [5 marks] A soccer ball is kicked from the ground so that it is projected at an initial angle of 39
More informationAP Physics Free Response Practice Oscillations
AP Physics Free Response Practice Oscillations 1975B7. A pendulum consists of a small object of mass m fastened to the end of an inextensible cord of length L. Initially, the pendulum is drawn aside through
More information