The acceleration of an object as a function of time is given by a(t) = (3.00 m/s3)t. If the object is at rest at time t = 0.00 s, what is the velocity of the object at time t = 5.00 s?

A) 15.0 m/s B) 37.5 m/s C) 0.00 m/s D) 12.0 m/s E) 75.0 m/s A) 15.0 m/s B) 37.5 m/s C) 0.00 m/s D) 12.0 m/s E) 75.0 m/s

The velocity of an object is given by the expression v(t) = 3.00 m/s + ( 2.00 m/s3)t2. Determine the position of the object as a function of time if it is located at x = 1.00 m at time t = 0.00 s.

A) ( 2.00 m/s)t + 1.00 m B) (3.00 m/s)t + ( 0.667 m/s3)t3 C) ( 2.00 m/s)t D) 0.667 m E) 1.00 m + (3.00 m/s)t + ( 0.667 m/s3)t3 A) ( 2.00 m/s)t + 1.00 m B) (3.00 m/s)t + ( 0.667 m/s3)t3 C) ( 2.00 m/s)t D) 0.667 m E) 1.00 m + (3.00 m/s)t + ( 0.667 m/s3)t3

The position of an object is given as a function of time as x(t) = (-3.00 m/s)t + (1.00 m/s2)t2. What is the average speed of the object between t = 0.00 s and t = 2.50 s?

A) 0.500 m/s B) 2.00 m/s C) -0.500 m/s D) 1.30 m/s E) 2.60 m/s A) 0.500 m/s B) 2.00 m/s C) -0.500 m/s D) 1.30 m/s E) 2.60 m/s

The position of an object is given as a function of time as x(t) = (3.00 m/s)t + (2.00 m/s2)t2. What is the displacement of the object between t = 4.00 s and t = 5.00 s?

A) 8.00 m B) 5.00 m C) 21.0 m D) 65.0 m E) 44.0 m A) 8.00 m B) 5.00 m C) 21.0 m D) 65.0 m E) 44.0 m

Exam 2: Describing Motion: Kinematics in One Dimension

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

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Question 61

If the velocity of an object is zero, does it mean that the acceleration is zero? Support your answer with an example.

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Question 62

Suppose that an object is moving with a constant velocity. Make a statement concerning its acceleration.

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Question 63

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?

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Question 64

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?

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Question 65

Can an object have increasing speed while its acceleration is decreasing? Support your answer with an example.

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Question 66

FIGURE 2-6 -Fig. 2-6 represents the position of a particle as it travels along the x-axis. What is the average speed of the particle between t = 0 s and t = 3 s?

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Question 67

The acceleration of an object as a function of time is given by a(t) = (3.00 m/s³)t. If the object is at rest at time t = 0.00 s, what is the velocity of the object at time t = 5.00 s?

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Question 68

FIGURE 2-9 -Refer to Fig. 2-9. If you start from the Bakery, travel to the Cafe, and then to the Art Gallery, what is the distance you have traveled?

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Question 69

The velocity of an object is given by the expression v(t) = 3.00 m/s + ( 2.00 m/s³)t². Determine the position of the object as a function of time if it is located at x = 1.00 m at time t = 0.00 s.

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Question 70

If an object was freely falling, from what height would it need to be dropped to reach a speed of 70.0 m/s before reaching the ground?

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Question 71

The position of an object is given as a function of time as x(t) = (-3.00 m/s)t + (1.00 m/s²)t². What is the average speed of the object between t = 0.00 s and t = 2.50 s?

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Question 72

If the position versus time graph of an object is a vertical line, the object is

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Question 73

The position of an object is given as a function of time as x(t) = (3.00 m/s)t + (2.00 m/s²)t². What is the displacement of the object between t = 4.00 s and t = 5.00 s?

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Question 74

Car A is traveling at twice the speed of car B. They both hit the brakes at the same time and undergo identical decelerations. How does the time required for car A to stop compare with that for car B?

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Question 75

Suppose that an object is moving with constant acceleration. Which of the following is an accurate statement concerning its motion?

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Question 76

At time t = 0.00 s, a car is traveling along a straight line at a speed of 20 m/s with constant acceleration. The car travels 56.0 m during the time interval between t = 2.00 s and t = 4.00 s. What is the acceleration of the car?

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Question 77

If the velocity versus time graph of an object is a straight line making an angle of 30 degrees with the time axis, the object is

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Question 78

A man walks south at a speed of 2.00 m/s for 60.0 minutes. He then turns around and walks north a distance 3000 m in 25.0 minutes. What is the average velocity of the man during his entire motion?

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Question 79

A ball is thrown straight up, reaches a maximum height, then falls to its initial height. Make a statement about the direction of the velocity and acceleration as the ball is coming down.

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Question 80

Showing 61 - 80 of 119

Exam 2: Describing Motion: Kinematics in One Dimension

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

If the velocity of an object is zero, does it mean that the acceleration is zero? Support your answer with an example.

Suppose that an object is moving with a constant velocity. Make a statement concerning its acceleration.

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?

Can an object have increasing speed while its acceleration is decreasing? Support your answer with an example.

FIGURE 2-6 -Fig. 2-6 represents the position of a particle as it travels along the x-axis. What is the average speed of the particle between t = 0 s and t = 3 s?

The acceleration of an object as a function of time is given by a(t) = (3.00 m/s3)t. If the object is at rest at time t = 0.00 s, what is the velocity of the object at time t = 5.00 s?

FIGURE 2-9 -Refer to Fig. 2-9. If you start from the Bakery, travel to the Cafe, and then to the Art Gallery, what is the distance you have traveled?

The velocity of an object is given by the expression v(t) = 3.00 m/s + ( 2.00 m/s3)t2. Determine the position of the object as a function of time if it is located at x = 1.00 m at time t = 0.00 s.

If an object was freely falling, from what height would it need to be dropped to reach a speed of 70.0 m/s before reaching the ground?

The position of an object is given as a function of time as x(t) = (-3.00 m/s)t + (1.00 m/s2)t2. What is the average speed of the object between t = 0.00 s and t = 2.50 s?

If the position versus time graph of an object is a vertical line, the object is

The position of an object is given as a function of time as x(t) = (3.00 m/s)t + (2.00 m/s2)t2. What is the displacement of the object between t = 4.00 s and t = 5.00 s?

Car A is traveling at twice the speed of car B. They both hit the brakes at the same time and undergo identical decelerations. How does the time required for car A to stop compare with that for car B?

Suppose that an object is moving with constant acceleration. Which of the following is an accurate statement concerning its motion?

At time t = 0.00 s, a car is traveling along a straight line at a speed of 20 m/s with constant acceleration. The car travels 56.0 m during the time interval between t = 2.00 s and t = 4.00 s. What is the acceleration of the car?

If the velocity versus time graph of an object is a straight line making an angle of 30 degrees with the time axis, the object is

A man walks south at a speed of 2.00 m/s for 60.0 minutes. He then turns around and walks north a distance 3000 m in 25.0 minutes. What is the average velocity of the man during his entire motion?

A ball is thrown straight up, reaches a maximum height, then falls to its initial height. Make a statement about the direction of the velocity and acceleration as the ball is coming down.

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The acceleration of an object as a function of time is given by a(t) = (3.00 m/s³)t. If the object is at rest at time t = 0.00 s, what is the velocity of the object at time t = 5.00 s?

The velocity of an object is given by the expression v(t) = 3.00 m/s + ( 2.00 m/s³)t². Determine the position of the object as a function of time if it is located at x = 1.00 m at time t = 0.00 s.

The position of an object is given as a function of time as x(t) = (-3.00 m/s)t + (1.00 m/s²)t². What is the average speed of the object between t = 0.00 s and t = 2.50 s?

The position of an object is given as a function of time as x(t) = (3.00 m/s)t + (2.00 m/s²)t². What is the displacement of the object between t = 4.00 s and t = 5.00 s?