A car is traveling with a constant speed when the driver suddenly applies the brakes, giving the car a deceleration of 3.50 m/s2. The car comes to a stop in a distance of 34.0 m. What was the car's speed when it had traveled 17.0 m from the point where the brakes were applied?

A) 10.9 m/s B) 14.5 m/s C) 10.7 m/s D) 21.0 m/s E) 15.3 m/s A) 10.9 m/s B) 14.5 m/s C) 10.7 m/s D) 21.0 m/s E) 15.3 m/s

Exam 2: One-Dimensional Kinematics

A car is traveling with a constant speed when the driver suddenly applies the brakes, giving the car a deceleration of 3.50 m/s². The car comes to a stop in a distance of 34.0 m. What was the car's speed when it had traveled 17.0 m from the point where the brakes were applied?

(Multiple Choice)

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Question 61

A car moving initially with velocity v₀ with deceleration a comes to a full stop after traveling a distance d. We can say that the velocity of the car after traveling a distance d/2 is

(Multiple Choice)

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Question 62

Suppose that a car traveling to the East (+x direction) begins to slow down as it approaches a traffic light. Make a statement concerning its acceleration.

(Multiple Choice)

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Question 63

A water rocket can reach a speed of 75 m/s in 0.050 seconds from launch. What is its average acceleration?

(Short Answer)

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Question 64

Abby throws a ball straight up and times it. She sees that the ball goes by the top of a flagpole after 0.500 s and reaches the level of the top of the pole after a total elapsed time of 4.10 s. What was the speed of the ball at launch?

(Multiple Choice)

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Question 65

Which statement is correct about the relationship between the average speed and the magnitude of the average velocity for any motion?

(Multiple Choice)

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Question 66

FIGURE 2-1 -The motion of a particle is described in the velocity vs. time graph shown in Figure 2-1. We can say that its speed

(Multiple Choice)

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Question 67

You drive 6.00 km at 50.0 km/h and then another 6.00 km at 90.0 km/h. Your average speed over the 12.0 km drive will be

(Multiple Choice)

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Question 68

An object is moving with constant non-zero velocity in the +x-axis. The velocity versus time graph of this object is

(Multiple Choice)

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Question 69

FIGURE 2-9 -Figure 2-9 represents the velocity of a particle as it travels along the x-axis. What is the average acceleration of the particle between t = 1 second and t = 4 seconds?

(Multiple Choice)

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Question 70

In a relay race, runner A is carrying the baton and has a speed of 2.80 m/s. When he is 25.0 m behind the starting line, runner B starts from rest and accelerates at 0.0800 m/s². How long afterwards will A catch up with B to pass the baton to B?

(Multiple Choice)

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Question 71

Two cars are traveling at the same speed and hit the brakes at the same time. One car has double the deceleration of the other. By what factor does the distance required to stop that car compare with that for the other car?

(Short Answer)

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Question 72

FIGURE 2-5 -Figure 2-5 shows the velocity-versus-time graph for a basketball player traveling up and down the court in a straight-line path. Find the displacement of the player for each of the segments A, B, C and D.

(Short Answer)

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Question 73

Suppose that an object travels from one point in space to another. Make a comparison between the displacement and the distance traveled.

(Multiple Choice)

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Question 74

FIGURE 2-6 -Refer to Figure 2-6. If you start from the Bakery, travel to the Art Gallery, and then to the Cafe, in 1.0 hour, what is your average speed?

(Multiple Choice)

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Question 75

An object is moving with constant non-zero acceleration in the +x-axis. The velocity versus time graph of this object is

(Multiple Choice)

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Question 76

Arthur and Betty start walking toward each other when they are 100 m apart. Arthur has a speed of 3.0 m/s and Betty has a speed of 2.0 m/s. Their dog, Spot, starts from Arthur's side at the same time and runs back and forth between them. By the time Arthur and Betty meet, what is Spot's displacement?

(Short Answer)

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Question 77

FIGURE 2-4 -Figure 2-4 represents the velocity of a particle as it travels along the x-axis. In what direction is the acceleration at t = 0.5 s?

(Short Answer)

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Question 78

An object is thrown upwards with a speed of 14 m/s. How high above the projection point does it reach?

(Multiple Choice)

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Question 79

If a car accelerates at 4.0 m/s², how long will it take to reach a speed of 80 km/hr, starting from rest?

(Short Answer)

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Question 80

Showing 61 - 80 of 112

Exam 2: One-Dimensional Kinematics

A car is traveling with a constant speed when the driver suddenly applies the brakes, giving the car a deceleration of 3.50 m/s2. The car comes to a stop in a distance of 34.0 m. What was the car's speed when it had traveled 17.0 m from the point where the brakes were applied?

A car moving initially with velocity v0 with deceleration a comes to a full stop after traveling a distance d. We can say that the velocity of the car after traveling a distance d/2 is

Suppose that a car traveling to the East (+x direction) begins to slow down as it approaches a traffic light. Make a statement concerning its acceleration.

A water rocket can reach a speed of 75 m/s in 0.050 seconds from launch. What is its average acceleration?

Abby throws a ball straight up and times it. She sees that the ball goes by the top of a flagpole after 0.500 s and reaches the level of the top of the pole after a total elapsed time of 4.10 s. What was the speed of the ball at launch?

Which statement is correct about the relationship between the average speed and the magnitude of the average velocity for any motion?

FIGURE 2-1 -The motion of a particle is described in the velocity vs. time graph shown in Figure 2-1. We can say that its speed

You drive 6.00 km at 50.0 km/h and then another 6.00 km at 90.0 km/h. Your average speed over the 12.0 km drive will be

An object is moving with constant non-zero velocity in the +x-axis. The velocity versus time graph of this object is

FIGURE 2-9 -Figure 2-9 represents the velocity of a particle as it travels along the x-axis. What is the average acceleration of the particle between t = 1 second and t = 4 seconds?

In a relay race, runner A is carrying the baton and has a speed of 2.80 m/s. When he is 25.0 m behind the starting line, runner B starts from rest and accelerates at 0.0800 m/s2. How long afterwards will A catch up with B to pass the baton to B?

Two cars are traveling at the same speed and hit the brakes at the same time. One car has double the deceleration of the other. By what factor does the distance required to stop that car compare with that for the other car?

FIGURE 2-5 -Figure 2-5 shows the velocity-versus-time graph for a basketball player traveling up and down the court in a straight-line path. Find the displacement of the player for each of the segments A, B, C and D.

Suppose that an object travels from one point in space to another. Make a comparison between the displacement and the distance traveled.

FIGURE 2-6 -Refer to Figure 2-6. If you start from the Bakery, travel to the Art Gallery, and then to the Cafe, in 1.0 hour, what is your average speed?

An object is moving with constant non-zero acceleration in the +x-axis. The velocity versus time graph of this object is

FIGURE 2-4 -Figure 2-4 represents the velocity of a particle as it travels along the x-axis. In what direction is the acceleration at t = 0.5 s?

An object is thrown upwards with a speed of 14 m/s. How high above the projection point does it reach?

If a car accelerates at 4.0 m/s2, how long will it take to reach a speed of 80 km/hr, starting from rest?

Introduction to Physics

Vectors in Physics

Two-Dimensional Kinematics

Newtons Laws of Motion

Applications of Newtons Laws

Work and Kinetic Energy

Potential Energy and Conservation of Energy

Linear Momentum and Collisions

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Rotational Dynamics and Static Equilibrium

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Oscillations About Equilibrium

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The Laws of Thermodynamics

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Magnetism

Magnetic Flux and Faradays Law of Induction

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A car is traveling with a constant speed when the driver suddenly applies the brakes, giving the car a deceleration of 3.50 m/s². The car comes to a stop in a distance of 34.0 m. What was the car's speed when it had traveled 17.0 m from the point where the brakes were applied?

A car moving initially with velocity v₀ with deceleration a comes to a full stop after traveling a distance d. We can say that the velocity of the car after traveling a distance d/2 is

In a relay race, runner A is carrying the baton and has a speed of 2.80 m/s. When he is 25.0 m behind the starting line, runner B starts from rest and accelerates at 0.0800 m/s². How long afterwards will A catch up with B to pass the baton to B?

If a car accelerates at 4.0 m/s², how long will it take to reach a speed of 80 km/hr, starting from rest?