# Phys101 First Major-111 Zero Version Monday, October 17, 2011 Page: 1

Size: px
Start display at page:

Download "Phys101 First Major-111 Zero Version Monday, October 17, 2011 Page: 1"

Transcription

1 Monday, October 17, 011 Page: 1 Q1. 1 b The speed-time relation of a moving particle is given by: v = at +, where v is the speed, t t + c is the time and a, b, c are constants. The dimensional formulae of the constants, a, b and c are respectively: c = [ T ], L A), L, and T T B) L T, L, and T L C), L, and T T L D), L, and T T E) L, L, and T L b = vt = T = [ L], T v L a = = t T Q. A 0.19 kg solid sphere has a radius of 1 mm. Its density is: m 0.19 ρ = = = kg/m V 4 ( ) 3 π A) kg/m 3 B) kg/m 3 C) kg/m 3 D) kg/m 3 E) kg/m Q3. You are given the two vectors A and B. If A B = and A B = 3.00, then the angle between A and B is: A) 36.9 B) 6.5 A B = 4.00 = A B cosθ 3 tanθ = = 36.9 A B = 3.00 = A B sinθ 4

2 Monday, October 17, 011 Page: C) 45.0 D) 86. E) 96.0 Q4. If the magnitude of the sum of two vectors is less than the magnitude of either vector, then: A) the scalar product of the vectors must be negative B) the scalar product of the vectors must be positive C) the vectors must be parallel and in opposite directions D) the vectors must be parallel and in the same direction E) the vectors must be perpendicular to each other. Q5. In Figure 1, A has a magnitude of 10.0 m and B has a magnitude of 8.0 m. The x-component of A + B is: ( ) Fig# 1 ( A + B) = 8cos cos 45 = 11 m x A) 11 m B) 8.0 m C) 15 m D) 7.3 m E) 19 m Q6..A car travels 80.0 km to the north at 40.0 km/h, then travels 60.0 km to the south at 30.0 km/h. What is the difference between the average speed and the magnitude of the average velocity on this trip? Total distance = 140 Km, Total displacement = 80-60=0 Km, Total time = 4 Average velocity on this trip = = 30 km/h 4 4

3 Monday, October 17, 011 Page: 3 A) 30 km/h B) 39 km/h C) 3 km/h D) 4 km/h E) 7 km/h Q7. 3 The position of a particle moving along the x-axis is given by: x = 3.0 t.0 t, where x is in meters and t is in seconds. At what time is its acceleration zero? 3 x = 3.0t.0t v = 6.0t 6.0t a = t a = 0 t = 0.5 s A) 0.50 s B) 1.0 s C) 1.5 s D) 0.67 s E) 0.5 s Q8. A ball is released from rest at the top of a building. The time it takes the ball to fall halfway to the ground is 1. s. Find the total time it takes for the ball to fall from the top of the building to the ground. 1 d 1 9.8(1.) d = v ot + gt = d = = 9.8t t = 1.7 s A) 1.7 s B) 1.8 s C) 1.5 s D) 1.9 s E).4 s Q9. A particle starts from the origin at t = 0 s with velocity of 6.0 i ˆ m/s and moves in xy plane with constant acceleration of (.0 i ˆ ˆj ) m/s. What are the (x, y) coordinates of the particle at the instant, when it reaches its maximum x coordinate? at the instant, when it achieves its maximum x coordinate?

4 Monday, October 17, 011 Page: 4 ( ) 1 ˆ 1 x = v ot + at = 6.0i +.0iˆ+ 4.0 jˆ t at max. height dx dt = 0 t = 3 s 1 x = 18 + ( )3 = 9 m, 1 (4)3 y = = 18 m A) x = 9.0 m, y = 18 m B) x = 18 m, y = 9.0 m C) x = 4.5 m, y = 9.0 m D) x = 7 m, y = 18 m E) x = 9.0 m, y = 7 m Q10. What is the magnitude of the acceleration of an aircraft, which enters a horizontal circular turn of radius R with velocity v i = 00 iˆ m/s and 15.0 s later leaves the turn with a velocity v f = 00 ˆj m/s? (see Figure ) Fig# v T π R 60v a = = 15 = 15 R =, R 4 4v π v v πv π ( 00) a = = = = = 0.9 m/s R 60v π A) 0.9 m/s B) 4.4 m/s C) 11.4 m/s D) 15.5 m/s E) 18.9 m/s Q11.

5 Monday, October 17, 011 Page: 5 A ball is thrown upward with a speed v o at an angle of 45 above the horizontal. It reaches a maximum height of 8.0 m. What is the maximum height this ball would go if it is thrown upward with a speed ( v o ) at an angle of 45 above the horizontal? A) 3 m B) 8.0 m C) 16 m D) 64 m E) 4.0 m h1 v 01 8 v 0 = = h = 8 4 = 3 m, h v 0 h v o note that v h = sin θ g 0 Q1. A car has a velocity (relative to the ground) of 16.0 m/s directed due north. A truck has a velocity (relative to the car) of 4.0 m/s, directed 5.0 north of east. What is magnitude of the truck velocity relative to the ground? Take East as x axis and North as y axis. Thus, V c =16 j, V tc =4 cos 5 î +4 sin 5 ĵ V tc = V t - V c V t = V tc + V c = 4 cos 5 î +4 sin 5 ĵ + 16 ĵ = 14.8 î ĵ V t = [ ] 1/ = 37.9 m/s A) 37.9 m/s B).7 m/s C) 11.3 m/s D) 19.7 m/s E) 15.1 m/s Q13. Three forces act on a particle of mass m = 1.0 kg that moves with constant velocity v = ( 5.0ˆi + 8.0ˆj ) m/s. Two of the forces are F 1 = ( 6.0ˆi + 4.0ˆj.0kˆ ) N and F = 8.0ˆi + 4.0ˆj 5.0kˆ N. What is the third force? ( ) Constant velocity means that total applied forces = 0 F1 + F + F3 = ( 6.0iˆ+ 4.0 jˆ.0kˆ ) + ( 8.0iˆ+ 4.0 jˆ 5.0kˆ ) + F3 = 0 F3 = ( F1 + F) = ( 6.0iˆ+ 4.0 jˆ.0kˆ ) + ( 8.0iˆ+ 4.0 jˆ 5.0kˆ ) = (.0iˆ 8.0 jˆ+ 7.0kˆ ) N

6 Monday, October 17, 011 Page: 6 A) (.0i ˆ 8.0 ˆj + 7.0kˆ )N B) ( 3.0i ˆ+ 1.6 ˆj + 4.0kˆ )N C) (.0iˆ 3.0 ˆj.0kˆ )N D) ( 8.0i ˆ 4.0 ˆj + 7.0kˆ )N E) 0 Q14. Consider a particle in motion. Which of the following statements is correct? A) If the sum of the external forces acting on the particle is zero, then the particle is moving with constant velocity. B) If the particle is moving with constant speed, then the sum of the external forces acting on it must always be zero. C) If the sum of the external forces acting on the particle is zero, then it will come to rest after some time. D) The velocity of the particle is always in the direction of the resultant external force. E) If the sum of the external forces acting on the particle is zero, then it has an acceleration of 9.8 m/s Q15. A 5.0 kg object is hung from a spring balance attached to the ceiling of an elevator cab (see Figure 3). The balance reads 65 N. What is the acceleration of the elevator? Equation of motion in moving upward is given by: Fig# 3 ( ) ma = T mg a = = 3. m/s 5

7 Monday, October 17, 011 Page: 7 A) 3. m/s B) 1.6 m/s C) 4.8 m/s D) 5.6 m/s E) 3 m/s Q16. Two blocks with masses m 1 = 0.0 kg and m = 30.0 kg respectively, are connected by a string that passes over a frictionless pulley with negligible mass as shown in Figure 4. The tension in the string is: The equations of motion of each mass are: ma = mg T, ma 1 = T mg 1 m m 1 a = g = 1.96 m/s m + m1 T= ( g am ) = 35 N Fig# A) 35 N B) 490 N C) 980 N D) 1 N E) 378 N Q17.

8 Monday, October 17, 011 Page: 8 A 115 kg car is traveling on a banked circular road that has a radius R = 5 m and is banked at angle θ. What should be this angle θ so that this car traveling at speed v = 9.1 m/s can safely go round the turn without sliding off the road? (Ignore frictional forces) N sin θ = mv /R (1) N cos θ = mg () (1) / () gives tan θ = v /(R g) = (9.1) /[(5)(9.8)]= θ = 1.0 A) 1.0 B) 15. C) 9.4 D) 11.8 E) 7.45 Q18. Three blocks of masses m 1 =1.5 kg, m =.0 kg, and m 3 =1.0 kg are pushed by a horizontal force F of magnitude 9.0 N as shown in Figure 5. The coefficient of kinetic friction between each block and the table is μ k = 0.0. What is the magnitude F 3 of the force on mass m 3 from mass m? The equation of motion of the system is: ( m1 + m + m3) a = F µ ( m1 + m + m3) g a = = 0.04 m/s 4.5 For the third mass: ma 3 = F3 F3 F3 = = N ( ) Fig# 5

9 Monday, October 17, 011 Page: 9 A).0 N B) 8. N C) 3.7 N D) 7.0 N E) 0 N Q19. In Figure 6, a 10.0 kg block is pushed at a constant speed up an inclined plane (θ = 45 ) with a horizontal force F. The coefficient of kinetic friction between block and the plane is μ k = What is the magnitude of F? The normal force is: N = mg cosθ + F sinθ The equation of motion down the inclined plane is: ma = F cosθ mg sinθ µ N = 0 since we have constant speed. The above equations give: mg (1 + µ ) F = 90 (1 µ ) Fig# 6

10 Monday, October 17, 011 Page: 10 A) 90 N B) 490 N C) 980 N D) 170 N E) 0 N Q0. A small remote control car with mass 1.60 kg moves in a vertical circle inside a hollow metal cylinder that has a radius of 9.80 m, as shown in the Figure 7. The speed at the highest point B is v = 9.80 m/s. What is the magnitude of the normal force exerted on the car by the walls of the cylinder at point B (at the top of the vertical circle?) The equation of motion at B is: v v m = mg + R R = m mg = 0 r r Fig# 7

11 Monday, October 17, 011 Page: 11 A) 0 N B) 13.5 N C) 95. N D) 63.3 N E) 75.6 N

### = M. L 2. T 3. = = cm 3

Phys101 First Major-1 Zero Version Sunday, March 03, 013 Page: 1 Q1. Work is defined as the scalar product of force and displacement. Power is defined as the rate of change of work with time. The dimension

### Phys101 First Major-061 Zero Version Coordinator: Abdelmonem Monday, October 30, 2006 Page: 1

Coordinator: Abdelmonem Monday, October 30, 006 Page: 1 Q1. An aluminum cylinder of density.70 g/cm 3, a radius of.30 cm, and a height of 1.40 m has the mass of: A) 6.8 kg B) 45.1 kg C) 13.8 kg D) 8.50

### Phys101-T121-First Major Exam Zero Version, choice A is the correct answer

Phys101-T121-First Major Exam Zero Version, choice A is the correct answer Q1. Find the mass of a solid cylinder of copper with a radius of 5.00 cm and a height of 10.0 inches if the density of copper

### Phys101 Second Major-152 Zero Version Coordinator: Dr. W. Basheer Monday, March 07, 2016 Page: 1

Phys101 Second Major-15 Zero Version Coordinator: Dr. W. Basheer Monday, March 07, 016 Page: 1 Q1. Figure 1 shows two masses; m 1 = 4.0 and m = 6.0 which are connected by a massless rope passing over a

### Phys101 Second Major-162 Zero Version Coordinator: Dr. Kunwar S. Saturday, March 25, 2017 Page: N Ans:

Coordinator: Dr. Kunwar S. Saturday, March 25, 2017 Page: 1 Q1. Only two horizontal forces act on a 3.0 kg body that can move over a frictionless floor. One force is 20 N, acting due east, and the other

### Phys101 Second Major-162 Zero Version Coordinator: Dr. Kunwar S. Saturday, March 25, 2017 Page: 1

Coordinator: Dr. Kunwar S. Saturday, March 25, 2017 Page: 1 Q1. Only two horizontal forces act on a 3.0 kg body that can move over a frictionless floor. One force is 20 N, acting due east, and the other

### A) 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

### 1. A sphere with a radius of 1.7 cm has a volume of: A) m 3 B) m 3 C) m 3 D) 0.11 m 3 E) 21 m 3

1. A sphere with a radius of 1.7 cm has a volume of: A) 2.1 10 5 m 3 B) 9.1 10 4 m 3 C) 3.6 10 3 m 3 D) 0.11 m 3 E) 21 m 3 2. A 25-N crate slides down a frictionless incline that is 25 above the horizontal.

### Q1. The density of aluminum is 2700 kg/m 3. Find the mass of a uniform solid aluminum cylinder of radius cm and height cm.

Coordinator: W. Al-Basheer Sunday, June 28, 2015 Page: 1 Q1. The density of aluminum is 2700 kg/m 3. Find the mass of a uniform solid aluminum cylinder of radius 10.00 cm and height 30.48 cm. A) 25.85

### PHYS 101 Previous Exam Problems. Force & Motion I

PHYS 101 Previous Exam Problems CHAPTER 5 Force & Motion I Newton s Laws Vertical motion Horizontal motion Mixed forces Contact forces Inclines General problems 1. A 5.0-kg block is lowered with a downward

### PHYS 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

### Q1. Which of the following is the correct combination of dimensions for energy?

Tuesday, June 15, 2010 Page: 1 Q1. Which of the following is the correct combination of dimensions for energy? A) ML 2 /T 2 B) LT 2 /M C) MLT D) M 2 L 3 T E) ML/T 2 Q2. Two cars are initially 150 kilometers

### AP Physics First Nine Weeks Review

AP Physics First Nine Weeks Review 1. If F1 is the magnitude of the force exerted by the Earth on a satellite in orbit about the Earth and F2 is the magnitude of the force exerted by the satellite on the

### ( ) ( ) A i ˆj. What is the unit vector Â that points in the direction of A? 1) The vector A is given by = ( 6.0m ) ˆ ( 8.0m ) Solution A D) 6 E) 6

A i ˆj. What is the unit vector Â that points in the direction of A? 1) The vector A is given b ( 6.m ) ˆ ( 8.m ) A ˆ i ˆ ˆ j A ˆ i ˆ ˆ j C) A ˆ ( 1 ) ( i ˆ ˆ j) D) Aˆ.6 iˆ+.8 ˆj E) Aˆ.6 iˆ.8 ˆj A) (.6m

### PHYSICS 221, FALL 2009 EXAM #1 SOLUTIONS WEDNESDAY, SEPTEMBER 30, 2009

PHYSICS 221, FALL 2009 EXAM #1 SOLUTIONS WEDNESDAY, SEPTEMBER 30, 2009 Note: The unit vectors in the +x, +y, and +z directions of a right-handed Cartesian coordinate system are î, ĵ, and ˆk, respectively.

### A. 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

### PHYS 101 Previous Exam Problems. Kinetic Energy and

PHYS 101 Previous Exam Problems CHAPTER 7 Kinetic Energy and Work Kinetic energy Work Work-energy theorem Gravitational work Work of spring forces Power 1. A single force acts on a 5.0-kg object in such

### Figure 1 Answer: = m

Q1. Figure 1 shows a solid cylindrical steel rod of length =.0 m and diameter D =.0 cm. What will be increase in its length when m = 80 kg block is attached to its bottom end? (Young's modulus of steel

### PSI AP Physics B Dynamics

PSI AP Physics B Dynamics Multiple-Choice questions 1. After firing a cannon ball, the cannon moves in the opposite direction from the ball. This an example of: A. Newton s First Law B. Newton s Second

### Q16.: A 5.0 kg block is lowered with a downward acceleration of 2.8 m/s 2 by means of a rope. The force of the block on the rope is:(35 N, down)

Old Exam Question Ch. 5 T072 Q13.Two blocks of mass m 1 = 24.0 kg and m 2, respectively, are connected by a light string that passes over a massless pulley as shown in Fig. 2. If the tension in the string

### Mechanics II. Which of the following relations among the forces W, k, N, and F must be true?

Mechanics II 1. By applying a force F on a block, a person pulls a block along a rough surface at constant velocity v (see Figure below; directions, but not necessarily magnitudes, are indicated). Which

### B C = B 2 + C 2 2BC cosθ = (5.6)(4.8)cos79 = ) The components of vectors B and C are given as follows: B x. = 6.

1) The components of vectors B and C are given as follows: B x = 6.1 C x = 9.8 B y = 5.8 C y = +4.6 The angle between vectors B and C, in degrees, is closest to: A) 162 B) 111 C) 69 D) 18 E) 80 B C = (

### Work and Energy (Work Done by a Constant Force)

Lecture 11 Chapter 7 Physics I 10.16.2013 Work and Energy (Work Done by a Constant Force) Course website: http://faculty.uml.edu/andriy_danylov/teaching/physicsi Lecture Capture: http://echo360.uml.edu/danylov2013/physics1fall.html

King Fahd University of Petroleum and Minerals Physics Department Physics 101 Recitation Term 131 Fall 013 Quiz # 4 Section 10 A 1.50-kg block slides down a frictionless 30.0 incline, starting from rest.

### Potential Energy & Conservation of Energy

PHYS 101 Previous Exam Problems CHAPTER 8 Potential Energy & Conservation of Energy Potential energy Conservation of energy conservative forces Conservation of energy friction Conservation of energy external

### University Physics (Prof. David Flory) Chapt_06 Saturday, October 06, 2007 Page 1

University Physics (Prof. David Flory) Chapt_06 Saturday, October 06, 2007 Page 1 Name: Date: 1. A crate resting on a rough horizontal floor is to be moved horizontally. The coefficient of static friction

### Exam 1 Solutions. PHY 2048 Spring 2014 Acosta, Rinzler. Note that there are several variations of some problems, indicated by choices in parentheses.

Exam 1 Solutions Note that there are several variations of some problems, indicated by choices in parentheses. Problem 1 Let vector a! = 4î + 3 ĵ and vector b! = î + 2 ĵ (or b! = î + 4 ĵ ). What is the

### UNIVERSITY OF MANITOBA. All questions are of equal value. Answer all questions. No marks are subtracted for wrong answers.

PAGE NO.: 1 of 5 All questions are of equal value. Answer all questions. No marks are subtracted for wrong answers. Record all answers on the computer score sheet provided. USE PENCIL ONLY! Black pen will

### PHYS 1303 Final Exam Example Questions

PHYS 1303 Final Exam Example Questions (In summer 2014 we have not covered questions 30-35,40,41) 1.Which quantity can be converted from the English system to the metric system by the conversion factor

### w = mg Use: g = 10 m/s 2 1 hour = 60 min = 3600 sec

The exam is closed book and closed notes. Part I: There are 1 multiple choice questions, 1 point each. The answers for the multiple choice questions are to be placed on the SCANTRON form provided. Make

### Name ID Section. 1. One mile is equal to 1609 m; 1 hour is equal to 3600 s. The highway speed limit of 65 mph is equivalent to the speed of:

The exam is closed book and closed notes. There are 30 multiple choice questions. Make sure you put your name, section, and ID number on the SCANTRON form. The answers for the multiple choice Questions

### (A) 10 m (B) 20 m (C) 25 m (D) 30 m (E) 40 m

PSI AP Physics C Work and Energy (Algebra Based) Multiple Choice Questions (use g = 10 m/s 2 ) 1. A student throws a ball upwards from the ground level where gravitational potential energy is zero. At

### Math Review Night: Work and the Dot Product

Math Review Night: Work and the Dot Product Dot Product A scalar quantity Magnitude: A B = A B cosθ The dot product can be positive, zero, or negative Two types of projections: the dot product is the parallel

### Solution to phys101-t112-final Exam

Solution to phys101-t112-final Exam Q1. An 800-N man stands halfway up a 5.0-m long ladder of negligible weight. The base of the ladder is.0m from the wall as shown in Figure 1. Assuming that the wall-ladder

### Physics 1 Second Midterm Exam (AM) 2/25/2010

Physics Second Midterm Eam (AM) /5/00. (This problem is worth 40 points.) A roller coaster car of m travels around a vertical loop of radius R. There is no friction and no air resistance. At the top of

### AP Physics C. Multiple Choice. Dynamics

Slide 1 / 36 P Physics C Multiple Choice ynamics Slide 2 / 36 1 ball moves horizontally with an initial velocity v1, as shown above. It is then struck by a tennis racket. fter leaving the racket, the ball

### Phys 1401: General Physics I

1. (0 Points) What course is this? a. PHYS 1401 b. PHYS 1402 c. PHYS 2425 d. PHYS 2426 2. (0 Points) Which exam is this? a. Exam 1 b. Exam 2 c. Final Exam 3. (0 Points) What version of the exam is this?

### INTI INTERNATIONAL UNIVERSITY FOUNDATION IN SCIENCE (CFSI) PHY1203: GENERAL PHYSICS 1 FINAL EXAMINATION: JUNE 2015 SESSION

INTI INTERNATIONAL UNIVERSITY PHY1203(F)/Page 1 of 6 FOUNDATION IN SCIENCE (CFSI) PHY1203: GENERAL PHYSICS 1 FINAL EXAMINATION: JUNE 2015 SESSION Instruction: This paper consists of FIVE (5) questions.

### MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.

Exam Name MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) You are standing in a moving bus, facing forward, and you suddenly fall forward as the

### PHYSICS 221, FALL 2010 EXAM #1 Solutions WEDNESDAY, SEPTEMBER 29, 2010

PHYSICS 1, FALL 010 EXAM 1 Solutions WEDNESDAY, SEPTEMBER 9, 010 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

### Units. EMU Physics Department. Ali ÖVGÜN.

Units Ali ÖVGÜN EMU Physics Department www.aovgun.com 1 mile = 1609 m January 22-25, 2013 January 22-25, 2013 Vectors Ali ÖVGÜN EMU Physics Department www.aovgun.com Example 1: Operations with Vectors

### is acting on a body of mass m = 3.0 kg and changes its velocity from an initial

PHYS 101 second major Exam Term 102 (Zero Version) Q1. A 15.0-kg block is pulled over a rough, horizontal surface by a constant force of 70.0 N acting at an angle of 20.0 above the horizontal. The block

### Random sample problems

UNIVERSITY OF ALABAMA Department of Physics and Astronomy PH 125 / LeClair Spring 2009 Random sample problems 1. The position of a particle in meters can be described by x = 10t 2.5t 2, where t is in seconds.

### Assignment 9. to roll without slipping, how large must F be? Ans: F = R d mgsinθ.

Assignment 9 1. A heavy cylindrical container is being rolled up an incline as shown, by applying a force parallel to the incline. The static friction coefficient is µ s. The cylinder has radius R, mass

### y(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

### Department of Physics

Department of Physics PHYS101-051 FINAL EXAM Test Code: 100 Tuesday, 4 January 006 in Building 54 Exam Duration: 3 hrs (from 1:30pm to 3:30pm) Name: Student Number: Section Number: Page 1 1. A car starts

### Old Exam. Question Chapter 7 072

Old Exam. Question Chapter 7 072 Q1.Fig 1 shows a simple pendulum, consisting of a ball of mass M = 0.50 kg, attached to one end of a massless string of length L = 1.5 m. The other end is fixed. If the

### Rutgers University Department of Physics & Astronomy. 01:750:271 Honors Physics I Fall Lecture 8. Home Page. Title Page. Page 1 of 35.

Rutgers University Department of Physics & Astronomy 01:750:271 Honors Physics I Fall 2015 Lecture 8 Page 1 of 35 Midterm 1: Monday October 5th 2014 Motion in one, two and three dimensions Forces and Motion

### MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. Diagram 1 A) B - A. B) A - B. C) A + B. D) A B.

Exam Name MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) In the diagram shown, the unknown vector is 1) Diagram 1 A) B - A. B) A - B. C) A + B.

### Phys101 Second Major-131 Zero Version Coordinator: Dr. A. A. Naqvi Sunday, November 03, 2013 Page: 1

Coordinator: Dr. A. A. Naqvi Sunday, November 03, 2013 Page: 1 Q1. Two forces are acting on a 2.00 kg box. In the overhead view of Figure 1 only one force F 1 and the acceleration of the box are shown.

### Center 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

### (35+70) 35 g (m 1+m 2)a=m1g a = 35 a= =3.27 g 105

Coordinator: Dr. W. L-Basheer Monday, March 16, 2015 Page: 1 Q1. 70 N block and a 35 N block are connected by a massless inextendable string which is wrapped over a frictionless pulley as shown in Figure

### Math Review 1: Vectors

Math Review 1: Vectors Coordinate System Coordinate system: used to describe the position of a point in space and consists of 1. An origin as the reference point 2. A set of coordinate axes with scales

### Phys 1401: General Physics I

1. (0 Points) What course is this? a. PHYS 1401 b. PHYS 1402 c. PHYS 2425 d. PHYS 2426 2. (0 Points) Which exam is this? a. Exam 1 b. Exam 2 c. Final Exam 3. (0 Points) What version of the exam is this?

### Webreview 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

### r r Sample Final questions for PS 150

Sample Final questions for PS 150 1) Which of the following is an accurate statement? A) Rotating a vector about an axis passing through the tip of the vector does not change the vector. B) The magnitude

### Physics 20 Practice Problems for Exam 1 Fall 2014

Physics 20 Practice Problems for Exam 1 Fall 2014 Multiple Choice Short Questions (1 pt ea.) Circle the best answer. 1. An apple falls from a tree and hits the ground 5 meters below. It hits the ground

### (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

### AP Physics Free Response Practice Dynamics

AP Physics Free Response Practice Dynamics 14) In the system shown above, the block of mass M 1 is on a rough horizontal table. The string that attaches it to the block of mass M 2 passes over a frictionless

### Summer 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

### Solution Only gravity is doing work. Since gravity is a conservative force mechanical energy is conserved:

8) roller coaster starts with a speed of 8.0 m/s at a point 45 m above the bottom of a dip (see figure). Neglecting friction, what will be the speed of the roller coaster at the top of the next slope,

### 24/06/13 Forces ( F.Robilliard) 1

R Fr F W 24/06/13 Forces ( F.Robilliard) 1 Mass: So far, in our studies of mechanics, we have considered the motion of idealised particles moving geometrically through space. Why a particular particle

### Friction is always opposite to the direction of motion.

6. Forces and Motion-II Friction: The resistance between two surfaces when attempting to slide one object across the other. Friction is due to interactions at molecular level where rough edges bond together:

### Exam 2 Phys Fall 2002 Version A. Name ID Section

Closed book exam - Calculators are allowed. Only the official formula sheet downloaded from the course web page can be used. You are allowed to write notes on the back of the formula sheet. Use the scantron

### PHYSICS FORMULAS. A. B = A x B x + A y B y + A z B z = A B cos (A,B)

PHYSICS FORMULAS A = A x i + A y j Φ = tan 1 A y A x A + B = (A x +B x )i + (A y +B y )j A. B = A x B x + A y B y + A z B z = A B cos (A,B) linear motion v = v 0 + at x - x 0 = v 0 t + ½ at 2 2a(x - x

### Q2. A machine carries a 4.0 kg package from an initial position of d ˆ. = (2.0 m)j at t = 0 to a final position of d ˆ ˆ

Coordinator: Dr. S. Kunwar Monday, March 25, 2019 Page: 1 Q1. An object moves in a horizontal circle at constant speed. The work done by the centripetal force is zero because: A) the centripetal force

### Concept of Force Challenge Problem Solutions

Concept of Force Challenge Problem Solutions Problem 1: Force Applied to Two Blocks Two blocks sitting on a frictionless table are pushed from the left by a horizontal force F, as shown below. a) Draw

### LAWS OF MOTION. Chapter Five MCQ I

Chapter Five LAWS OF MOTION MCQ I 5. A ball is travelling with uniform translatory motion. This means that (a) it is at rest. (b) the path can be a straight line or circular and the ball travels with uniform

### Phys 111 Exam 1 September 19, You cannot use CELL PHONES, ipad, IPOD... Good Luck!!! Name Section University ID

Phys 111 Exam 1 September 19, 2017 Name Section University ID Please fill in your computer answer sheet as follows: 1) In the NAME grid, fill in your last name, leave one blank space, then your first name.

### Physics 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

### Phys101 Second Major-173 Zero Version Coordinator: Dr. M. Al-Kuhaili Thursday, August 02, 2018 Page: 1. = 159 kw

Coordinator: Dr. M. Al-Kuhaili Thursday, August 2, 218 Page: 1 Q1. A car, of mass 23 kg, reaches a speed of 29. m/s in 6.1 s starting from rest. What is the average power used by the engine during the

### AP Physics 1: MIDTERM REVIEW OVER UNITS 2-4: KINEMATICS, DYNAMICS, FORCE & MOTION, WORK & POWER

MIDTERM REVIEW AP Physics 1 McNutt Name: Date: Period: AP Physics 1: MIDTERM REVIEW OVER UNITS 2-4: KINEMATICS, DYNAMICS, FORCE & MOTION, WORK & POWER 1.) A car starts from rest and uniformly accelerates

### Physics 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

### Phys101 Third Major-161 Zero Version Coordinator: Dr. Ayman S. El-Said Monday, December 19, 2016 Page: 1

Coordinator: Dr. Ayman S. El-Said Monday, December 19, 2016 Page: 1 Q1. A water molecule (H 2 O) consists of an oxygen (O) atom of mass 16m and two hydrogen (H) atoms, each of mass m, bound to it (see

### d. Determine the power output of the boy required to sustain this velocity.

AP Physics C Dynamics Free Response Problems 1. A 45 kg boy stands on 30 kg platform suspended by a rope passing over a stationary pulley that is free to rotate. The other end of the rope is held by the

### = v 0 x. / t = 1.75m / s 2.25s = 0.778m / s 2 nd law taking left as positive. net. F x ! F

Multiple choice Problem 1 A 5.-N bos sliding on a rough horizontal floor, and the only horizontal force acting on it is friction. You observe that at one instant the bos sliding to the right at 1.75 m/s

### Created by T. Madas WORK & ENERGY. Created by T. Madas

WORK & ENERGY Question (**) A B 0m 30 The figure above shows a particle sliding down a rough plane inclined at an angle of 30 to the horizontal. The box is released from rest at the point A and passes

### Physics S Exam 1 March 11th, Last Name: First Name: Discussion Section:

Physics 7 5S Exam 1 March 11th, 5 Last Name: First Name: Discussion Section: Instructions- This is a closed book exam. No memory aids of any kind, electronic or otherwise, may be used. You have fifty (5)

Laws of Motion. A fighter aircraft is looping in a vertical plane. The minimum velocity at the highest point is (Given r = radius of the loop) a) gr b) gr c) gr d) 3gr. In non-inertial frame, the second

### Chapter 4. Forces and Newton s Laws of Motion. continued

Chapter 4 Forces and Newton s Laws of Motion continued 4.9 Static and Kinetic Frictional Forces When an object is in contact with a surface forces can act on the objects. The component of this force acting

### Old Exams Questions Ch. 8 T072 Q2.: Q5. Q7.

Old Exams Questions Ch. 8 T072 Q2.: A ball slides without friction around a loop-the-loop (see Fig 2). A ball is released, from rest, at a height h from the left side of the loop of radius R. What is the

### Kinetic Energy and Work

Kinetic Energy and Work 8.01 W06D1 Today s Readings: Chapter 13 The Concept of Energy and Conservation of Energy, Sections 13.1-13.8 Announcements Problem Set 4 due Week 6 Tuesday at 9 pm in box outside

### Physics for Scientists and Engineers. Chapter 6 Dynamics I: Motion Along a Line

Physics for Scientists and Engineers Chapter 6 Dynamics I: Motion Along a Line Spring, 008 Ho Jung Paik Applications of Newton s Law Objects can be modeled as particles Masses of strings or ropes are negligible

### dt 2 x = r cos(θ) y = r sin(θ) r = x 2 + y 2 tan(θ) = y x A circle = πr 2

v = v i + at a dv dt = d2 x dt 2 A sphere = 4πr 2 x = x i + v i t + 1 2 at2 x = r cos(θ) V sphere = 4 3 πr3 v 2 = v 2 i + 2a x F = ma R = v2 sin(2θ) g y = r sin(θ) r = x 2 + y 2 tan(θ) = y x a c = v2 r

### MULTIPLE 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

### Exam 2 Solutions. PHY2048 Spring 2017

Exam Solutions. The figure shows an overhead view of three horizontal forces acting on a cargo canister that was initially stationary but that now moves across a frictionless floor. The force magnitudes

### PRACTICE TEST for Midterm Exam

South Pasadena AP Physics PRACTICE TEST for Midterm Exam FORMULAS Name Period Date / / d = vt d = v o t + ½ at 2 d = v o + v 2 t v = v o + at v 2 = v 2 o + 2ad v = v x 2 + v y 2 = tan 1 v y v v x = v cos

### Free-body diagrams. a. Find the acceleration of mass 2. b. Determine the magnitude of the tension in the string.

Free-body diagrams 1. wo blocks of masses m1 = 5.0 kg and m =.0 kg hang on both sides of an incline, connected through an ideal, massless string that goes through an ideal, massless pulley, as shown below.

### MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.

PH 105 Exam 2 VERSION A Name MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) Is it possible for a system to have negative potential energy? A)

### AP Physics C: Mechanics Practice (Newton s Laws including friction, resistive forces, and centripetal force).

AP Physics C: Mechanics Practice (Newton s Laws including friction, resistive forces, and centripetal force). 1981M1. A block of mass m, acted on by a force of magnitude F directed horizontally to the

### Physics 23 Exam 2 March 3, 2009

Use the following to answer question 1: A stationary 4-kg shell explodes into three pieces. Two of the fragments have a mass of 1 kg each and move along the paths shown with a speed of 10 m/s. The third

### LAHS Physics Semester 1 Final Practice Multiple Choice

LAHS Physics Semester 1 Final Practice Multiple Choice The following Multiple Choice problems are practice MC for the final. Some or none of these problems may appear on the real exam. Answers are provided

### MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.

PH 105 Exam 2 VERSION B Name MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) A boy throws a rock with an initial velocity of 2.15 m/s at 30.0 above

### Written Homework problems. Spring (taken from Giancoli, 4 th edition)

Written Homework problems. Spring 014. (taken from Giancoli, 4 th edition) HW1. Ch1. 19, 47 19. Determine the conversion factor between (a) km / h and mi / h, (b) m / s and ft / s, and (c) km / h and m

### The 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

### LECTURE 12 FRICTION, STRINGS & SPRINGS. Instructor: Kazumi Tolich

LECTURE 12 FRICTION, STRINGS & SPRINGS Instructor: Kazumi Tolich Lecture 12 2! Reading chapter 6-1 to 6-4! Friction " Static friction " Kinetic friction! Strings! Pulleys! Springs Origin of friction 3!!

### PHYSICS 221 SPRING EXAM 1: February 20, 2014; 8:15pm 10:15pm

PHYSICS 221 SPRING 2014 EXAM 1: February 20, 2014; 8:15pm 10:15pm Name (printed): Recitation Instructor: Section # INSTRUCTIONS: This exam contains 25 multiple-choice questions plus 2 extra credit questions,