Question 1

The figure shows the graph of vx versus time for an object moving along the x-axis. Solve graphically for the distance traveled from t = 9.0 s to t = 13.0 s.

Accepted Answer

A)  60 m 
B)  84 m 
C)  76 m 
D)  80 m 
A)  60 m 
B)  84 m 
C)  76 m 
D)  80 m

Question 2

An object starts from rest with an acceleration of 2.0 m/s2 in the +x-direction for 3.0 seconds. It then reduces its acceleration to 1.0 m/s2 for 5.0 additional seconds. The total distance covered is about

Accepted Answer

A)  52 m. 
B)  38 m. 
C)  11 m. 
D)  9.0 m. 
E)  7.6 m. 
A)  52 m. 
B)  38 m. 
C)  11 m. 
D)  9.0 m. 
E)  7.6 m.

Question 3

A car traveling at 4.0 m/s has a constant acceleration of 2.0 m/s2 in the same direction as the velocity. After 3.0 seconds, the magnitude of the average velocity during the acceleration is

Accepted Answer

A)  5.0 m/s. 
B)  7.0 m/s. 
C)  9.0 m/s. 
D)  11 m/s. 
E)  13. 
A)  5.0 m/s. 
B)  7.0 m/s. 
C)  9.0 m/s. 
D)  11 m/s. 
E)  13.

Question 4

The graph shows vx versus t for an object moving along straight line. What is the acceleration ax at t = 11 s?

Accepted Answer

A)  −10 m/s2 
B)  10 m/s2 
C)  22 m/s2 
D)  −22 m/s2 
A)  −10 m/s2 
B)  10 m/s2 
C)  22 m/s2 
D)  −22 m/s2

Question 5

A small golden statue falls from a height of 8.2 m and lands on a pillow. If the acceleration of the statue upon striking the pillow is constant, what is the value of the acceleration if the pillow compresses by 3.9 cm as the statue comes to rest?

Accepted Answer

A)  2100 m/s2 
B)  21 m/s2 
C)  160 m/s2 
D)  210 m/s2 
A)  2100 m/s2 
B)  21 m/s2 
C)  160 m/s2 
D)  210 m/s2

Question 6

A sprinter runs 100.0 m in 12.2 seconds. If he travels at constant acceleration for the first 50.0 m and then at constant velocity for the final 50.0 m, what was his peak speed?

Accepted Answer

A)  12.3 m/s 
B)  17.5 m/s 
C)  8.20 m/s 
D)  4.10 m/s 
A)  12.3 m/s 
B)  17.5 m/s 
C)  8.20 m/s 
D)  4.10 m/s

Question 7

A bullet shot straight up returns to its starting point in 10 s. Ignoring air resistance, what was the initial speed of the bullet?

Accepted Answer

A)  98 m/s 
B)  49 m/s 
C)  25 m/s 
D)  9.8 m/s 
A)  98 m/s 
B)  49 m/s 
C)  25 m/s 
D)  9.8 m/s

Question 8

A walker walks 30 m from the origin toward the EAST to point A. She then walks from point A 20 m more toward the WEST to point B. The walker's total displacement from the origin is

Accepted Answer

A)  50 m toward the EAST. 
B)  30 m toward the WEST. 
C)  20 m toward the WEST. 
D)  10 m toward the EAST. 
E)  10 m toward the WEST. 
A)  50 m toward the EAST. 
B)  30 m toward the WEST. 
C)  20 m toward the WEST. 
D)  10 m toward the EAST. 
E)  10 m toward the WEST.

Question 9

An object starts with an initial velocity of magnitude 4.0 m/s and accelerates at 4.0 m/s2 in the same direction as the velocity for 6.0 seconds. It then accelerates at 2.0 m/s2 in the opposite direction, until its velocity is the same as the initial value. What is the total distance covered?

Accepted Answer

A)  67 m 
B)  96 m 
C)  192 m 
D)  216 m 
E)  288 m 
A)  67 m 
B)  96 m 
C)  192 m 
D)  216 m 
E)  288 m

Question 10

A 4.0 kg mass has a velocity of 12 m/s to the WEST. The mass experiences a constant acceleration of 2.0 m/s2 to the WEST for 3.0 sec. What is the velocity of the mass at the end of the 3.0 sec interval?

Accepted Answer

A)  18 m/s to the WEST 
B)  6.0 m/s to the WEST 
C)  0.0 m/s 
D)  6.0 m/s to the EAST 
E)  18 m/s to the EAST 
A)  18 m/s to the WEST 
B)  6.0 m/s to the WEST 
C)  0.0 m/s 
D)  6.0 m/s to the EAST 
E)  18 m/s to the EAST

Question 11

A model rocket flies straight upward with constant acceleration, undergoing a displacement of 15.0 m during its first 0.25 s of travel. What was its speed at the end of the first 0.25 s, assuming it started from rest?

Accepted Answer

A)  30 m/s 
B)  60 m/s 
C)  11 m/s 
D)  120 m/s 
A)  30 m/s 
B)  60 m/s 
C)  11 m/s 
D)  120 m/s

Question 12

A runner runs 10 m from the origin toward the WEST to point A. He then runs from point A 20 m more toward the WEST to point B. He then runs from point B 30 m more toward the EAST to point C. The runner's total displacement from the origin to point C is

Accepted Answer

A)  60 m toward the WEST. 
B)  50 m toward the EAST. 
C)  20 m toward the WEST. 
D)  10 m toward the EAST. 
E)  0 m. 
A)  60 m toward the WEST. 
B)  50 m toward the EAST. 
C)  20 m toward the WEST. 
D)  10 m toward the EAST. 
E)  0 m.

Question 13

The figure is a graph of vx(t) for a car. Solve graphically for the distance traveled from t = 10 s to t = 15 s.

Accepted Answer

A)  75 m 
B)  70 m 
C)  67 m 
D)  69 m 
A)  75 m 
B)  70 m 
C)  67 m 
D)  69 m

Question 14

Ball A is dropped from the top of a building. One second later ball B is dropped from the same point. As time progresses, the distance between them

Accepted Answer

A)  increases. 
B)  decreases. 
C)  remains constant. 
D)  need more information 
A)  increases. 
B)  decreases. 
C)  remains constant. 
D)  need more information

Question 15

The figure shows the graph of vx versus time for an object moving along the x-axis. What is the acceleration ax at t = 7.0 s?

Accepted Answer

A)  4.0 m/s2 
B)  5.0 m/s2 
C)  0.5 m/s2 
D)  0.4 m/s2 
A)  4.0 m/s2 
B)  5.0 m/s2 
C)  0.5 m/s2 
D)  0.4 m/s2

Question 16

A mouse is running away from a cat at a speed of 0.75 m/s. At a distance of 1.25 m from his mouse hole, the mouse accelerates at a constant rate of 0.25 m/s2 until he reaches his hole safely. How long did it take the mouse to cover the last 1.25 m?

Accepted Answer

A)  1.4 s 
B)  1.7 s 
C)  1.2 s 
D)  10 s 
A)  1.4 s 
B)  1.7 s 
C)  1.2 s 
D)  10 s

Question 17

A boat is traveling at 4.0 m/s as it passes the starting line of a race. If the boat accelerates at 1.0 m/s2 for 6.0 seconds, in the same direction as the velocity, then the magnitude of the average velocity of the boat during the 6.0 seconds is

Accepted Answer

A)  21 m/s. 
B)  9.0 m/s. 
C)  13 m/s. 
D)  10 m/s. 
E)  7.0 m/s. 
A)  21 m/s. 
B)  9.0 m/s. 
C)  13 m/s. 
D)  10 m/s. 
E)  7.0 m/s.

Question 18

A sprinter runs 100.0 m. If he travels at constant acceleration of 1.95 m/s2 for the first 75.0 m and then at constant velocity for the remaining distance, what was his total elapsed time for the whole race?

Accepted Answer

A)  11.3 s 
B)  9.8 s 
C)  10.1 s 
D)  10.2 s 
A)  11.3 s 
B)  9.8 s 
C)  10.1 s 
D)  10.2 s

Question 19

A walker starts at the origin at 1:00 PM and walks 3.0 km from the origin toward the WEST to point A. She arrives at point A at 2:30 PM. She then walks from point A 2.0 km toward the WEST to point B and arrives at point B at 3:45 PM. The walker's average velocity for the entire trip is

Accepted Answer

A)  1.8 km/hr toward the EAST. 
B)  1.8 km/hr toward the WEST. 
C)  1.3 km/hr toward the WEST. 
D)  1.3 km/hr toward the EAST. 
E)  0.36 km/hr toward the WEST. 
A)  1.8 km/hr toward the EAST. 
B)  1.8 km/hr toward the WEST. 
C)  1.3 km/hr toward the WEST. 
D)  1.3 km/hr toward the EAST. 
E)  0.36 km/hr toward the WEST.

Question 20

A runner runs 10 m from the origin toward the WEST to point A. He then runs from point A 20 m more toward the EAST to point B. He then runs from point B 30 m more toward the WEST to point C. The runner's total displacement from the origin to point C is

Accepted Answer

A)  60 m toward the WEST. 
B)  50 m toward the WEST. 
C)  20 m toward the WEST. 
D)  10 m toward the WEST. 
E)  0 m. 
A)  60 m toward the WEST. 
B)  50 m toward the WEST. 
C)  20 m toward the WEST. 
D)  10 m toward the WEST. 
E)  0 m.

Exam 2: Motion Along a Line

The figure shows the graph of vx versus time for an object moving along the x-axis. Solve graphically for the distance traveled from t = 9.0 s to t = 13.0 s.

An object starts from rest with an acceleration of 2.0 m/s2 in the +x-direction for 3.0 seconds. It then reduces its acceleration to 1.0 m/s2 for 5.0 additional seconds. The total distance covered is about

A car traveling at 4.0 m/s has a constant acceleration of 2.0 m/s2 in the same direction as the velocity. After 3.0 seconds, the magnitude of the average velocity during the acceleration is

The graph shows vx versus t for an object moving along straight line. What is the acceleration ax at t = 11 s?

A small golden statue falls from a height of 8.2 m and lands on a pillow. If the acceleration of the statue upon striking the pillow is constant, what is the value of the acceleration if the pillow compresses by 3.9 cm as the statue comes to rest?

A sprinter runs 100.0 m in 12.2 seconds. If he travels at constant acceleration for the first 50.0 m and then at constant velocity for the final 50.0 m, what was his peak speed?

A bullet shot straight up returns to its starting point in 10 s. Ignoring air resistance, what was the initial speed of the bullet?

A walker walks 30 m from the origin toward the EAST to point A. She then walks from point A 20 m more toward the WEST to point B. The walker's total displacement from the origin is

An object starts with an initial velocity of magnitude 4.0 m/s and accelerates at 4.0 m/s2 in the same direction as the velocity for 6.0 seconds. It then accelerates at 2.0 m/s2 in the opposite direction, until its velocity is the same as the initial value. What is the total distance covered?

A 4.0 kg mass has a velocity of 12 m/s to the WEST. The mass experiences a constant acceleration of 2.0 m/s2 to the WEST for 3.0 sec. What is the velocity of the mass at the end of the 3.0 sec interval?

A model rocket flies straight upward with constant acceleration, undergoing a displacement of 15.0 m during its first 0.25 s of travel. What was its speed at the end of the first 0.25 s, assuming it started from rest?

A runner runs 10 m from the origin toward the WEST to point A. He then runs from point A 20 m more toward the WEST to point B. He then runs from point B 30 m more toward the EAST to point C. The runner's total displacement from the origin to point C is

The figure is a graph of vx(t) for a car. Solve graphically for the distance traveled from t = 10 s to t = 15 s.

Ball A is dropped from the top of a building. One second later ball B is dropped from the same point. As time progresses, the distance between them

The figure shows the graph of vx versus time for an object moving along the x-axis. What is the acceleration ax at t = 7.0 s?

A mouse is running away from a cat at a speed of 0.75 m/s. At a distance of 1.25 m from his mouse hole, the mouse accelerates at a constant rate of 0.25 m/s2 until he reaches his hole safely. How long did it take the mouse to cover the last 1.25 m?

A boat is traveling at 4.0 m/s as it passes the starting line of a race. If the boat accelerates at 1.0 m/s2 for 6.0 seconds, in the same direction as the velocity, then the magnitude of the average velocity of the boat during the 6.0 seconds is

A sprinter runs 100.0 m. If he travels at constant acceleration of 1.95 m/s2 for the first 75.0 m and then at constant velocity for the remaining distance, what was his total elapsed time for the whole race?

A walker starts at the origin at 1:00 PM and walks 3.0 km from the origin toward the WEST to point A. She arrives at point A at 2:30 PM. She then walks from point A 2.0 km toward the WEST to point B and arrives at point B at 3:45 PM. The walker's average velocity for the entire trip is

A runner runs 10 m from the origin toward the WEST to point A. He then runs from point A 20 m more toward the EAST to point B. He then runs from point B 30 m more toward the WEST to point C. The runner's total displacement from the origin to point C is

Introduction

Motion in a Plane

Force and Newtons Laws of Motion

Circular Motion

Conservation of Energy

Linear Momentum

Torque and Angular Momentum

Fluids

Elasticity and Oscillations

Waves

Sound

Temperature and the Ideal Gas

Heat

Thermodynamics

Electric Forces and Fields

Electric Potential

Electric Current and Circuits

Magnetic Forces and Fields

Electromagnetic Induction

Alternating Current

Electromagnetic Waves

Reflection and Refraction of Light

Optical Instruments

Interference and Diffraction

Relativity

Early Quantum Physics and the Photon

Quantum Physics

Nuclear Physics

Particle Physics

Filters

The figure shows the graph of v_x versus time for an object moving along the x-axis. Solve graphically for the distance traveled from t = 9.0 s to t = 13.0 s.

An object starts from rest with an acceleration of 2.0 m/s² in the +x-direction for 3.0 seconds. It then reduces its acceleration to 1.0 m/s² for 5.0 additional seconds. The total distance covered is about

A car traveling at 4.0 m/s has a constant acceleration of 2.0 m/s² in the same direction as the velocity. After 3.0 seconds, the magnitude of the average velocity during the acceleration is

The graph shows v_xversus t for an object moving along straight line. What is the acceleration a_x at t = 11 s?

An object starts with an initial velocity of magnitude 4.0 m/s and accelerates at 4.0 m/s² in the same direction as the velocity for 6.0 seconds. It then accelerates at 2.0 m/s² in the opposite direction, until its velocity is the same as the initial value. What is the total distance covered?

A 4.0 kg mass has a velocity of 12 m/s to the WEST. The mass experiences a constant acceleration of 2.0 m/s² to the WEST for 3.0 sec. What is the velocity of the mass at the end of the 3.0 sec interval?

The figure is a graph of v_x(t) for a car. Solve graphically for the distance traveled from t = 10 s to t = 15 s.

The figure shows the graph of v_x versus time for an object moving along the x-axis. What is the acceleration a_x at t = 7.0 s?

A mouse is running away from a cat at a speed of 0.75 m/s. At a distance of 1.25 m from his mouse hole, the mouse accelerates at a constant rate of 0.25 m/s² until he reaches his hole safely. How long did it take the mouse to cover the last 1.25 m?

A boat is traveling at 4.0 m/s as it passes the starting line of a race. If the boat accelerates at 1.0 m/s² for 6.0 seconds, in the same direction as the velocity, then the magnitude of the average velocity of the boat during the 6.0 seconds is

A sprinter runs 100.0 m. If he travels at constant acceleration of 1.95 m/s² for the first 75.0 m and then at constant velocity for the remaining distance, what was his total elapsed time for the whole race?