Question 1

A car is traveling at 26.0 m/s when the driver suddenly applies the brakes, giving the car a constant deceleration. The car comes to a stop in a distance of 120.0 m. How fast was the car moving when it was 60.0 m past the point where the brakes were applied?

Accepted Answer

A)  22.5 m/s 
B)  18.4 m/s 
C)  15.0 m/s 
D)  12.1 m/s 
E)  9.20 m/s

Question 2

A stone is thrown straight up. What is its acceleration on the way down?

Accepted Answer

The answer of A stone is thrown straight up. What...

Question 3

Two objects are dropped from a bridge, an interval of 1.0 s apart. During the time that both objects continue to fall, their separation

Accepted Answer

A)  increases. 
B)  decreases. 
C)  stays constant. 
D)  increases at first, but then stays constant. 
E)  decreases at first, but then stays constant.

Question 4

The average velocity of a car traveling with a constant acceleration during a certain time interval is equal to the mean of the velocities at the beginning and end of that time interval.

Accepted Answer

A) True 
 B)False

Question 5

The slope of a tangent line at a given time value on a velocity versus time graph gives

Accepted Answer

A)  displacement. 
B)  instantaneous velocity. 
C)  average velocity. 
D)  instantaneous acceleration. 
E)  average acceleration.

Question 6

A ball is thrown straight up with a speed of 30 m/s.
(a.) How long does it take the ball to reach the maximum height?
(b.) What is the maximum height reached by the ball?
(c.) What is its speed after 4.2 s?

Accepted Answer

The answer of A ball is thrown straight up with...

Question 7

An astronaut stands by the rim of a crater on the moon, where the acceleration of gravity is 1.62 m/s2. To determine the depth of the crater, she drops a rock and measures the time it takes for it to hit the bottom. If the time is 6.3 s, what is the depth of the crater?

Accepted Answer

A)  10 m 
B)  14 m 
C)  26 m 
D)  32 m 
E)  38 m

Question 8

When the velocity and acceleration of an object have the same sign, the speed of the object increases.

Accepted Answer

A) True 
 B)False

Question 9

At the instant a traffic light turns green, a car that has been waiting at the intersection starts ahead with a constant acceleration of 2.00 m/s². At that moment a truck traveling with a constant velocity of 15.0 m/s overtakes and passes the car. (a.) Calculate the time necessary for the car to reach the truck. (b.) Calculate the distance beyond the traffic light that the car will pass the truck. (c.) Determine the speed of the car when it passes the truck.

Accepted Answer

The answer of At the instant a traffic light turns...

Question 10

Free fall is the motion of an object subject only to the influence of gravity.

Accepted Answer

A) True 
 B)False

Question 11

An object thrown downward does not experience free fall.

Accepted Answer

A) True 
 B)False

Question 12

FIGURE 2-4 
-Figure 2-4 represents the velocity of a particle as it travels along the x-axis. What is the average acceleration of the particle between t = 2 s and t = 4 s?

Accepted Answer

The answer of FIGURE 2-4 
-Figure 2-4 represents the velocity...

Question 13

An airplane starts from rest and accelerates at 10.8 m/s2. What is its speed at the end of a 400 m-long runway?

Accepted Answer

A)  37.0 m/s 
B)  93.0 m/s 
C)  65.7 m/s 
D)  4320 m/s 
E)  186 m/s

Question 14

FIGURE 2-2 
-Figure 2-2 represents the position of a particle as it travels along the x-axis. What is the average velocity of the particle between t = 0 s and t = 3 s?

Accepted Answer

The answer of FIGURE 2-2 
-Figure 2-2 represents the position...

Question 15

An object thrown upward experiences free fall.

Accepted Answer

A) True 
 B)False

Question 16

To determine the height of a bridge above the water, a person drops a stone and measures the time it takes for it to hit the water. If the height of the bridge is 41 m, how long will it take for the stone to hit the water?

Accepted Answer

A)  2.3 s 
B)  2.6 s 
C)  2.9 s 
D)  3.2 s 
E)  3.6 s

Question 17

A certain car can accelerate from 0 to 100 km/hr in 6.0 seconds. What is the average acceleration of that car in m/s²?

Accepted Answer

The answer of A certain car can accelerate from 0...

Question 18

A runner runs around a track consisting of two parallel lines 96 m long connected at the ends by two semicircles with a radius of 49 m. She completes one lap in 100 seconds. What is her average velocity?

Accepted Answer

A)  2.5 m/s 
B)  5.0 m/s 
C)  10 m/s 
D)  0 m/s 
E)  1.3 m/s

Question 19

A car with good tires on a dry road can decelerate at about 5.0 m/s² when braking. Suppose a car is initially traveling at 55 mi/h. (a.) How much time does it take the car to stop? (b.) What is the stopping distance?

Accepted Answer

The answer of A car with good tires on a...

Question 20

The slope of a line connecting two points on a position versus time graph gives

Accepted Answer

A)  displacement. 
B)  instantaneous velocity. 
C)  average velocity. 
D)  instantaneous acceleration. 
E)  average acceleration.

Exam 2: One-Dimensional Kinematics

A car is traveling at 26.0 m/s when the driver suddenly applies the brakes, giving the car a constant deceleration. The car comes to a stop in a distance of 120.0 m. How fast was the car moving when it was 60.0 m past the point where the brakes were applied?

A stone is thrown straight up. What is its acceleration on the way down?

Two objects are dropped from a bridge, an interval of 1.0 s apart. During the time that both objects continue to fall, their separation

The average velocity of a car traveling with a constant acceleration during a certain time interval is equal to the mean of the velocities at the beginning and end of that time interval.

The slope of a tangent line at a given time value on a velocity versus time graph gives

A ball is thrown straight up with a speed of 30 m/s. (a.) How long does it take the ball to reach the maximum height? (b.) What is the maximum height reached by the ball? (c.) What is its speed after 4.2 s?

An astronaut stands by the rim of a crater on the moon, where the acceleration of gravity is 1.62 m/s². To determine the depth of the crater, she drops a rock and measures the time it takes for it to hit the bottom. If the time is 6.3 s, what is the depth of the crater?

When the velocity and acceleration of an object have the same sign, the speed of the object increases.

Free fall is the motion of an object subject only to the influence of gravity.

An object thrown downward does not experience free fall.

FIGURE 2-4 -Figure 2-4 represents the velocity of a particle as it travels along the x-axis. What is the average acceleration of the particle between t = 2 s and t = 4 s?

An airplane starts from rest and accelerates at 10.8 m/s². What is its speed at the end of a 400 m-long runway?

FIGURE 2-2 -Figure 2-2 represents the position of a particle as it travels along the x-axis. What is the average velocity of the particle between t = 0 s and t = 3 s?

An object thrown upward experiences free fall.

To determine the height of a bridge above the water, a person drops a stone and measures the time it takes for it to hit the water. If the height of the bridge is 41 m, how long will it take for the stone to hit the water?

A certain car can accelerate from 0 to 100 km/hr in 6.0 seconds. What is the average acceleration of that car in m/s²?

A runner runs around a track consisting of two parallel lines 96 m long connected at the ends by two semicircles with a radius of 49 m. She completes one lap in 100 seconds. What is her average velocity?

A car with good tires on a dry road can decelerate at about 5.0 m/s² when braking. Suppose a car is initially traveling at 55 mi/h. (a.) How much time does it take the car to stop? (b.) What is the stopping distance?

The slope of a line connecting two points on a position versus time graph gives

Exam 2: One-Dimensional Kinematics

A car is traveling at 26.0 m/s when the driver suddenly applies the brakes, giving the car a constant deceleration. The car comes to a stop in a distance of 120.0 m. How fast was the car moving when it was 60.0 m past the point where the brakes were applied?

A stone is thrown straight up. What is its acceleration on the way down?

Two objects are dropped from a bridge, an interval of 1.0 s apart. During the time that both objects continue to fall, their separation

The average velocity of a car traveling with a constant acceleration during a certain time interval is equal to the mean of the velocities at the beginning and end of that time interval.

The slope of a tangent line at a given time value on a velocity versus time graph gives

A ball is thrown straight up with a speed of 30 m/s. (a.) How long does it take the ball to reach the maximum height? (b.) What is the maximum height reached by the ball? (c.) What is its speed after 4.2 s?

An astronaut stands by the rim of a crater on the moon, where the acceleration of gravity is 1.62 m/s2. To determine the depth of the crater, she drops a rock and measures the time it takes for it to hit the bottom. If the time is 6.3 s, what is the depth of the crater?

When the velocity and acceleration of an object have the same sign, the speed of the object increases.

Free fall is the motion of an object subject only to the influence of gravity.

An object thrown downward does not experience free fall.

FIGURE 2-4 -Figure 2-4 represents the velocity of a particle as it travels along the x-axis. What is the average acceleration of the particle between t = 2 s and t = 4 s?

An airplane starts from rest and accelerates at 10.8 m/s2. What is its speed at the end of a 400 m-long runway?

FIGURE 2-2 -Figure 2-2 represents the position of a particle as it travels along the x-axis. What is the average velocity of the particle between t = 0 s and t = 3 s?

An object thrown upward experiences free fall.

To determine the height of a bridge above the water, a person drops a stone and measures the time it takes for it to hit the water. If the height of the bridge is 41 m, how long will it take for the stone to hit the water?

A certain car can accelerate from 0 to 100 km/hr in 6.0 seconds. What is the average acceleration of that car in m/s2?

A runner runs around a track consisting of two parallel lines 96 m long connected at the ends by two semicircles with a radius of 49 m. She completes one lap in 100 seconds. What is her average velocity?

A car with good tires on a dry road can decelerate at about 5.0 m/s2 when braking. Suppose a car is initially traveling at 55 mi/h. (a.) How much time does it take the car to stop? (b.) What is the stopping distance?

The slope of a line connecting two points on a position versus time graph gives

An astronaut stands by the rim of a crater on the moon, where the acceleration of gravity is 1.62 m/s². To determine the depth of the crater, she drops a rock and measures the time it takes for it to hit the bottom. If the time is 6.3 s, what is the depth of the crater?

An airplane starts from rest and accelerates at 10.8 m/s². What is its speed at the end of a 400 m-long runway?

A certain car can accelerate from 0 to 100 km/hr in 6.0 seconds. What is the average acceleration of that car in m/s²?

A car with good tires on a dry road can decelerate at about 5.0 m/s² when braking. Suppose a car is initially traveling at 55 mi/h. (a.) How much time does it take the car to stop? (b.) What is the stopping distance?