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

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?

(Multiple Choice)

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Question 81

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

(Short Answer)

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Question 82

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

(Multiple Choice)

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Question 83

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.

(True/False)

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Question 84

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

(Multiple Choice)

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Question 85

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?

(Short Answer)

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Question 86

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?

(Multiple Choice)

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Question 87

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

(True/False)

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Question 88

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.

(Short Answer)

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Question 89

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

(True/False)

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Question 90

An object thrown downward does not experience free fall.

(True/False)

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Question 91

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?

(Short Answer)

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Question 92

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?

(Multiple Choice)

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Question 93

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?

(Short Answer)

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Question 94

An object thrown upward experiences free fall.

(True/False)

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Question 95

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?

(Multiple Choice)

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Question 96

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?

(Short Answer)

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Question 97

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?

(Multiple Choice)

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Question 98

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?

(Short Answer)

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Question 99

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

(Multiple Choice)

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Question 100

Showing 81 - 100 of 112

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

Introduction to Physics

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Newtons Laws of Motion

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Magnetic Flux and Faradays Law of Induction

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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?