A cart is given an initial velocity of 5.0 m/s and experiences a constant acceleration of 2.0 m/s2.What is the magnitude of the cart's displacement during the first 6.0 s of its motion?

A) 10 m B) 55 m C) 66 m D) 80 m A) 10 m B) 55 m C) 66 m D) 80 m

If the displacement of an object is given in SI units by Dx = -3 t + 4 t 2, at t = 2 s its velocity and acceleration are, respectively:

A) positive, positive. B) positive, negative. C) negative, negative. D) negative, positive. A) positive, positive. B) positive, negative. C) negative, negative. D) negative, positive.

The distance of the Earth from the sun is 93 000 000 miles.If there are 3.15 * 107 s in one year, find the speed of the Earth in its orbit about the sun.

A) 9.28 miles/s B) 18.6 miles/s C) 27.9 miles/s D) 37.2 miles/s A) 9.28 miles/s B) 18.6 miles/s C) 27.9 miles/s D) 37.2 miles/s

Exam 2: Motion in One Dimension

When a drag strip vehicle reaches a velocity of 60 m/s, it begins a negative acceleration by releasing a drag chute and applying its brakes.While reducing its velocity back to zero, its acceleration along a straight line path is a constant -7.5 m/s².What displacement does it undergo during this deceleration period?

(Multiple Choice)

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Question 41

A cart is given an initial velocity of 5.0 m/s and experiences a constant acceleration of 2.0 m/s².What is the magnitude of the cart's displacement during the first 6.0 s of its motion?

(Multiple Choice)

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Question 42

An x vs.t graph is drawn for a ball moving in one direction.The graph starts at the origin and at t = 5 s the velocity of the ball is zero.We can be positive that at t = 5 s,

(Multiple Choice)

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Question 43

Mt.Everest is more than 8 000 m high.How fast would an object be moving if it could free fall to sea level after being released from an 8000-m elevation? (Ignore air resistance.)

(Multiple Choice)

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Question 44

Jeff throws a ball straight up.For which situation is the vertical velocity zero?

(Multiple Choice)

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Question 45

A rock, released at rest from the top of a tower, hits the ground after 1.5 s.What is the speed of the rock as it hits the ground? (g = 9.8 m/s² and air resistance is negligible)

(Multiple Choice)

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Question 46

A ball is thrown vertically upwards at 19.6 m/s.For its complete trip (up and back down to the starting position), its average velocity is:

(Multiple Choice)

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Question 47

Two objects of different mass are released simultaneously from the top of a 20-m tower and fall to the ground.If air resistance is negligible, which statement best applies?

(Multiple Choice)

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Question 48

A baseball is released at rest from the top of the Washington Monument.It hits the ground after falling for 6.0 s.What was the height from which the ball was dropped? (g = 9.8 m/s² and assume air resistance is negligible)

(Multiple Choice)

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Question 49

In which of the following cases is the displacement's magnitude half the distance traveled?

(Multiple Choice)

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Question 50

A bird, accelerating from rest at a constant rate, experiences a displacement of 28 m in 11 s.What is its acceleration?

(Multiple Choice)

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Question 51

If the displacement of an object is given in SI units by Dx = -3 t + 4 t², at t = 2 s its velocity and acceleration are, respectively:

(Multiple Choice)

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Question 52

At the top of a cliff 100 m high, Raoul throws a rock upward with velocity 15.0 m/s.How much later should he drop a second rock from rest so both rocks arrive simultaneously at the bottom of the cliff?

(Multiple Choice)

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Question 53

A 50-g ball traveling at 25.0 m/s is bounced off a brick wall and rebounds at 22.0 m/s.A high-speed camera records this event.If the ball is in contact with the wall for 3.50 ms, what is the average acceleration of the ball during this time interval?

(Multiple Choice)

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Question 54

A v vs.t graph is drawn for a ball moving in one direction.The graph starts at the origin and at t = 5 s the acceleration of the ball is zero.We know that at t = 5 s,

(Multiple Choice)

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Question 55

Omar throws a rock down with speed 12 m/s from the top of a tower.The rock hits the ground after 2.0 s.What is the height of the tower? (air resistance is negligible)

(Multiple Choice)

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Question 56

A rock is thrown straight down with an initial velocity of 14.5 m/s from a cliff.What is the rock's displacement after 2.0 s? (Acceleration due to gravity is 9.80 m/s².)

(Multiple Choice)

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Question 57

A ball rolls down an incline, starting from rest.If the total time it takes to reach the end of the incline is T, how much time has elapsed when it is halfway down the incline?

(Multiple Choice)

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Question 58

The distance of the Earth from the sun is 93 000 000 miles.If there are 3.15 * 10⁷ s in one year, find the speed of the Earth in its orbit about the sun.

(Multiple Choice)

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Question 59

A rock is thrown straight up with an initial velocity of 19.6 m/s.What time interval elapses between the rock's being thrown and its return to the original launch point? (Acceleration due to gravity is 9.80 m/s².)

(Multiple Choice)

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Question 60

Showing 41 - 60 of 63

Exam 2: Motion in One Dimension

A cart is given an initial velocity of 5.0 m/s and experiences a constant acceleration of 2.0 m/s2.What is the magnitude of the cart's displacement during the first 6.0 s of its motion?

An x vs.t graph is drawn for a ball moving in one direction.The graph starts at the origin and at t = 5 s the velocity of the ball is zero.We can be positive that at t = 5 s,

Mt.Everest is more than 8 000 m high.How fast would an object be moving if it could free fall to sea level after being released from an 8000-m elevation? (Ignore air resistance.)

Jeff throws a ball straight up.For which situation is the vertical velocity zero?

A rock, released at rest from the top of a tower, hits the ground after 1.5 s.What is the speed of the rock as it hits the ground? (g = 9.8 m/s2 and air resistance is negligible)

A ball is thrown vertically upwards at 19.6 m/s.For its complete trip (up and back down to the starting position), its average velocity is:

Two objects of different mass are released simultaneously from the top of a 20-m tower and fall to the ground.If air resistance is negligible, which statement best applies?

A baseball is released at rest from the top of the Washington Monument.It hits the ground after falling for 6.0 s.What was the height from which the ball was dropped? (g = 9.8 m/s2 and assume air resistance is negligible)

In which of the following cases is the displacement's magnitude half the distance traveled?

A bird, accelerating from rest at a constant rate, experiences a displacement of 28 m in 11 s.What is its acceleration?

If the displacement of an object is given in SI units by Dx = -3 t + 4 t 2, at t = 2 s its velocity and acceleration are, respectively:

At the top of a cliff 100 m high, Raoul throws a rock upward with velocity 15.0 m/s.How much later should he drop a second rock from rest so both rocks arrive simultaneously at the bottom of the cliff?

A 50-g ball traveling at 25.0 m/s is bounced off a brick wall and rebounds at 22.0 m/s.A high-speed camera records this event.If the ball is in contact with the wall for 3.50 ms, what is the average acceleration of the ball during this time interval?

A v vs.t graph is drawn for a ball moving in one direction.The graph starts at the origin and at t = 5 s the acceleration of the ball is zero.We know that at t = 5 s,

Omar throws a rock down with speed 12 m/s from the top of a tower.The rock hits the ground after 2.0 s.What is the height of the tower? (air resistance is negligible)

A rock is thrown straight down with an initial velocity of 14.5 m/s from a cliff.What is the rock's displacement after 2.0 s? (Acceleration due to gravity is 9.80 m/s2.)

A ball rolls down an incline, starting from rest.If the total time it takes to reach the end of the incline is T, how much time has elapsed when it is halfway down the incline?

The distance of the Earth from the sun is 93 000 000 miles.If there are 3.15 * 107 s in one year, find the speed of the Earth in its orbit about the sun.

A rock is thrown straight up with an initial velocity of 19.6 m/s.What time interval elapses between the rock's being thrown and its return to the original launch point? (Acceleration due to gravity is 9.80 m/s2.)

Introduction

Vectors and Two-Dimensional Motion

The Laws of Motion

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Rotational Motion and the Law of Gravity

Rotational Equilibrium and Rotational Dynamics

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Energy in Thermal Processes

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A cart is given an initial velocity of 5.0 m/s and experiences a constant acceleration of 2.0 m/s².What is the magnitude of the cart's displacement during the first 6.0 s of its motion?

A rock, released at rest from the top of a tower, hits the ground after 1.5 s.What is the speed of the rock as it hits the ground? (g = 9.8 m/s² and air resistance is negligible)

A baseball is released at rest from the top of the Washington Monument.It hits the ground after falling for 6.0 s.What was the height from which the ball was dropped? (g = 9.8 m/s² and assume air resistance is negligible)

If the displacement of an object is given in SI units by Dx = -3 t + 4 t², at t = 2 s its velocity and acceleration are, respectively:

A rock is thrown straight down with an initial velocity of 14.5 m/s from a cliff.What is the rock's displacement after 2.0 s? (Acceleration due to gravity is 9.80 m/s².)

The distance of the Earth from the sun is 93 000 000 miles.If there are 3.15 * 10⁷ s in one year, find the speed of the Earth in its orbit about the sun.

A rock is thrown straight up with an initial velocity of 19.6 m/s.What time interval elapses between the rock's being thrown and its return to the original launch point? (Acceleration due to gravity is 9.80 m/s².)