How far does a car travel in 6 s if its initial velocity is 2 m/s and its acceleration is 2 m/s2 in the same direction as its initial velocity?

A) 12 m B) 14 m C) 24 m D) 36 m E) 48 m A) 12 m B) 14 m C) 24 m D) 36 m E) 48 m

The coordinate of an object is given as a function of time by x = 7t - 3t2, where x is in meters and t is in seconds.Its average velocity over the interval from t = 0 to t = 2 s is:

A) 5 m/s B) -5 m/s C) 11 m/s D) -11 m/s E) 1 m/s A) 5 m/s B) -5 m/s C) 11 m/s D) -11 m/s E) 1 m/s

Starting at time t = 0, an object moves along a straight line.Its coordinate in meters is given by x(t)= 75t - 1.0t3, where t is in seconds.When it momentarily stops its acceleration is:

A) 0 m/s2 B) -73 m/s2 C) -30 m/s2 D) -9.8 m/s2 E) 9.2 x 103 m/s2 A) 0 m/s2 B) -73 m/s2 C) -30 m/s2 D) -9.8 m/s2 E) 9.2 x 103 m/s2

An object with an initial velocity of 12 m/s west experiences a constant acceleration of 4 m/s2 west for 3 seconds.During this time the object travels a distance of:

A) 18 m B) 24 m C) 36 m D) 54 m E) 144 m A) 18 m B) 24 m C) 36 m D) 54 m E) 144 m

Exam 2: Motion Along a Straight Line

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A car starts from Hither, goes 50 km in a straight line to Yon, immediately turns around, and returns to Hither.The time for this round trip is 2 hours.The magnitude of the average velocity of the car for this round trip is:

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Question 41

Which one of the following statements is correct for an object in free fall released from rest?

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Question 42

Which of the following five coordinate versus time graphs represents the motion of an object moving with a constant nonzero speed?

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Question 43

At a location where g = 9.80 m/s², an object is thrown vertically down with an initial speed of 1.00 m/s.After 5.00 s the object will have traveled:

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Question 44

Two automobiles are 150 kilometers apart and traveling toward each other.One automobile is moving at 60 km/h and the other is moving at 40 km/h.In how many hours will they meet?

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Question 45

A projectile is shot vertically upward with a given initial velocity.It reaches a maximum height of 100 m.If on a second shot the initial velocity is doubled, then the projectile will reach a maximum height of:

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Question 46

This graph shows the position of a particle as a function of time.What is its instantaneous velocity at t = 7s?

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Question 47

A stone is released from rest from the edge of a building roof 190 m above the ground.Neglecting air resistance, the speed of the stone, just before striking the ground, is:

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Question 48

How far does a car travel in 6 s if its initial velocity is 2 m/s and its acceleration is 2 m/s² in the same direction as its initial velocity?

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Question 49

A particle moves on the x axis.When its acceleration is positive and increasing:

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Question 50

Each of four particles moves along an x axis.Their coordinates (in meters)as functions of time (in seconds)are given by For which of these particles is the velocity increasing for t > 0?

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Question 51

The coordinate of an object is given as a function of time by x = 7t - 3t², where x is in meters and t is in seconds.Its average velocity over the interval from t = 0 to t = 2 s is:

(Multiple Choice)

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Question 52

Starting at time t = 0, an object moves along a straight line.Its coordinate in meters is given by x(t)= 75t - 1.0t³, where t is in seconds.When it momentarily stops its acceleration is:

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Question 53

A car, initially at rest, travels 20 m in 4 s along a straight line with constant acceleration.The acceleration of the car is:

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Question 54

An object is thrown straight down with an initial speed of 4 m/s from a window which is 8 m above the ground.The time it takes the object to reach the ground is:

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Question 55

All falling objects experience some air resistance, the effect of which is to decrease acceleration.When the falling object's acceleration reaches zero, the acceleration stops changing.Therefore, if you drop an object and it falls far enough for this to happen,

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Question 56

As a rocket is accelerating vertically upward at 9.8 m/s² near the Earth's surface, it releases a projectile.Immediately after release the acceleration of the projectile is:

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Question 57

An object with an initial velocity of 12 m/s west experiences a constant acceleration of 4 m/s² west for 3 seconds.During this time the object travels a distance of:

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Question 58

The acceleration of an object, starting from rest, is shown in the graph below.Other than at t = 0, when is the velocity of the object equal to zero?

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Question 59

The diagram represents the straight line motion of a car.Which of the following statements is true?

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Question 60

Showing 41 - 60 of 90

Exam 2: Motion Along a Straight Line

A car starts from Hither, goes 50 km in a straight line to Yon, immediately turns around, and returns to Hither.The time for this round trip is 2 hours.The magnitude of the average velocity of the car for this round trip is:

Which one of the following statements is correct for an object in free fall released from rest?

Which of the following five coordinate versus time graphs represents the motion of an object moving with a constant nonzero speed?

At a location where g = 9.80 m/s2, an object is thrown vertically down with an initial speed of 1.00 m/s.After 5.00 s the object will have traveled:

Two automobiles are 150 kilometers apart and traveling toward each other.One automobile is moving at 60 km/h and the other is moving at 40 km/h.In how many hours will they meet?

A projectile is shot vertically upward with a given initial velocity.It reaches a maximum height of 100 m.If on a second shot the initial velocity is doubled, then the projectile will reach a maximum height of:

This graph shows the position of a particle as a function of time.What is its instantaneous velocity at t = 7s?

A stone is released from rest from the edge of a building roof 190 m above the ground.Neglecting air resistance, the speed of the stone, just before striking the ground, is:

How far does a car travel in 6 s if its initial velocity is 2 m/s and its acceleration is 2 m/s2 in the same direction as its initial velocity?

A particle moves on the x axis.When its acceleration is positive and increasing:

Each of four particles moves along an x axis.Their coordinates (in meters)as functions of time (in seconds)are given by For which of these particles is the velocity increasing for t > 0?

The coordinate of an object is given as a function of time by x = 7t - 3t2, where x is in meters and t is in seconds.Its average velocity over the interval from t = 0 to t = 2 s is:

Starting at time t = 0, an object moves along a straight line.Its coordinate in meters is given by x(t)= 75t - 1.0t3, where t is in seconds.When it momentarily stops its acceleration is:

A car, initially at rest, travels 20 m in 4 s along a straight line with constant acceleration.The acceleration of the car is:

An object is thrown straight down with an initial speed of 4 m/s from a window which is 8 m above the ground.The time it takes the object to reach the ground is:

All falling objects experience some air resistance, the effect of which is to decrease acceleration.When the falling object's acceleration reaches zero, the acceleration stops changing.Therefore, if you drop an object and it falls far enough for this to happen,

As a rocket is accelerating vertically upward at 9.8 m/s2 near the Earth's surface, it releases a projectile.Immediately after release the acceleration of the projectile is:

An object with an initial velocity of 12 m/s west experiences a constant acceleration of 4 m/s2 west for 3 seconds.During this time the object travels a distance of:

The acceleration of an object, starting from rest, is shown in the graph below.Other than at t = 0, when is the velocity of the object equal to zero?

The diagram represents the straight line motion of a car.Which of the following statements is true?

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At a location where g = 9.80 m/s², an object is thrown vertically down with an initial speed of 1.00 m/s.After 5.00 s the object will have traveled:

How far does a car travel in 6 s if its initial velocity is 2 m/s and its acceleration is 2 m/s² in the same direction as its initial velocity?

The coordinate of an object is given as a function of time by x = 7t - 3t², where x is in meters and t is in seconds.Its average velocity over the interval from t = 0 to t = 2 s is:

Starting at time t = 0, an object moves along a straight line.Its coordinate in meters is given by x(t)= 75t - 1.0t³, where t is in seconds.When it momentarily stops its acceleration is:

As a rocket is accelerating vertically upward at 9.8 m/s² near the Earth's surface, it releases a projectile.Immediately after release the acceleration of the projectile is:

An object with an initial velocity of 12 m/s west experiences a constant acceleration of 4 m/s² west for 3 seconds.During this time the object travels a distance of: