A cart has an initial velocity of 5.0 m/s to the right and a constant acceleration of 2.0 m/s2 to the right.What is the cart's displacement during the first 6.0 s of this 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

The velocity v(t)of a particle as a function of time is given by v(t)= (2.3 m/s)+ (4.1 m/s2)t - (6.2 m/s3)t2.What is the average acceleration of the particle between t = 1.0 s and t = 2.0 s?

A) -13 m/s2 B) -15 m/s2 C) 13 m/s2 D) 15 m/s2 E) 0 m/s2 A) -13 m/s2 B) -15 m/s2 C) 13 m/s2 D) 15 m/s2 E) 0 m/s2

Exam 2: Kinematics: Motion in One Dimension

A rock is thrown upward with a speed of 12 m/s on the surface of planet X where the acceleration of objects in free fall is 1.5 m/s² and there is no atmosphere.What is the maximum height reached by the laser?

(Multiple Choice)

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Question 141

A ball is thrown downward in the absence of air.After it has been released,which statement(s)concerning its acceleration is correct? (There could be more than one correct choice.)

(Multiple Choice)

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Question 142

A car with good tires on a dry road can slow down at a steady rate of about 5.0 m/s² when braking.If a car is initially traveling at 55 mi/h (a)how much time does it take the car to stop? (b)what is its stopping distance?

(Short Answer)

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Question 143

A baseball is hit with a bat and,as a result,its direction is completely reversed and its speed is doubled.If the actual contact with the bat lasts 0.45 s,what is the ratio of the magnitude of the average acceleration of the ball to its original speed?

(Multiple Choice)

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Question 144

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

(Multiple Choice)

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Question 145

An astronaut stands by the rim of a crater on the Moon,where the acceleration of gravity is 1.62 m/s² and there is no air.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 depth of the crater is 120 m,how long does it take for the rock to fall to the bottom of the crater?

(Multiple Choice)

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Question 146

The graph in the figure shows the position of a particle as a function of time as it travels along the x-axis. (a)What is the average speed of the particle between t = 2.0 s and t = 4.0 s? (b)What is the average velocity of the particle between t = 2.0 s and t = 4.0 s?

(Short Answer)

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Question 147

A car is moving with a constant acceleration.At time t = 5.0 s its velocity is 8.0 m/s in the forward direction,and at time t = 8.0 s its velocity is 12.0 m/s forward.What is the distance traveled in that interval of time?

(Multiple Choice)

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Question 148

A cart has an initial velocity of 5.0 m/s to the right and a constant acceleration of 2.0 m/s² to the right.What is the cart's displacement during the first 6.0 s of this motion?

(Multiple Choice)

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Question 149

An auto manufacturer advertises that their car can go "from zero to sixty in eight seconds." This is a description of what characteristic of the car's motion?

(Multiple Choice)

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Question 150

Assuming equal rates of uniform acceleration in both cases,how much further would you travel if braking from $56 \mathrm { mi } / \mathrm { h }$ to rest than from $28 \mathrm { mi } / \mathrm { h }$ ?

(Multiple Choice)

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Question 151

A ball is thrown straight upward from ground level with a speed of 18 m/s.How much time passes before the ball strikes the ground if we disregard air resistance?

(Multiple Choice)

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Question 152

The figure shows a graph of the velocity of an object as a function of time.What is the acceleration of the object at the following times? (a)At 1.0 s (b)At 3.0 s

(Short Answer)

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Question 153

The velocity v(t)of a particle as a function of time is given by v(t)= (2.3 m/s)+ (4.1 m/s²)t - (6.2 m/s³)t².What is the average acceleration of the particle between t = 1.0 s and t = 2.0 s?

(Multiple Choice)

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Question 154

A car increases its forward velocity uniformly from 40 m/s to 80 m/s while traveling a distance of 200 m.What is its acceleration during this time?

(Multiple Choice)

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Question 155

An object starts from rest and undergoes uniform acceleration.During the first second it travels 5.0 m.How far will it travel during the third second?

(Multiple Choice)

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Question 156

The area under a curve in a velocity versus time graph gives

(Multiple Choice)

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Question 157

A toy rocket is launched vertically from ground level at time t = 0.00 s.The rocket engine provides constant upward acceleration during the burn phase.At the instant of engine burnout,the rocket has risen to 81 m and acquired an upward velocity of 40 m/s.The rocket continues to rise with insignificant air resistance in unpowered flight,reaches maximum height,and falls back to the ground.The upward acceleration of the rocket during the burn phase is closest to

(Multiple Choice)

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Question 158

When a ball is thrown straight up with no air resistance,the acceleration at its highest point

(Multiple Choice)

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Question 159

A ball is projected upward at time t = 0 s,from a point on a flat roof 90 m above the ground.The ball rises and then falls with insignificant air resistance,missing the roof,and strikes the ground.The initial velocity of the ball is 80.5 m/s.Consider all quantities as positive in the upward direction.The vertical velocity of the ball when it is $89 \mathrm {~m}$ above the ground is closest to

(Multiple Choice)

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Question 160

Showing 141 - 160 of 162

Exam 2: Kinematics: Motion in One Dimension

A rock is thrown upward with a speed of 12 m/s on the surface of planet X where the acceleration of objects in free fall is 1.5 m/s2 and there is no atmosphere.What is the maximum height reached by the laser?

A ball is thrown downward in the absence of air.After it has been released,which statement(s)concerning its acceleration is correct? (There could be more than one correct choice.)

A car with good tires on a dry road can slow down at a steady rate of about 5.0 m/s2 when braking.If a car is initially traveling at 55 mi/h (a)how much time does it take the car to stop? (b)what is its stopping distance?

A baseball is hit with a bat and,as a result,its direction is completely reversed and its speed is doubled.If the actual contact with the bat lasts 0.45 s,what is the ratio of the magnitude of the average acceleration of the ball to its original speed?

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

The graph in the figure shows the position of a particle as a function of time as it travels along the x-axis. (a)What is the average speed of the particle between t = 2.0 s and t = 4.0 s? (b)What is the average velocity of the particle between t = 2.0 s and t = 4.0 s?

A car is moving with a constant acceleration.At time t = 5.0 s its velocity is 8.0 m/s in the forward direction,and at time t = 8.0 s its velocity is 12.0 m/s forward.What is the distance traveled in that interval of time?

A cart has an initial velocity of 5.0 m/s to the right and a constant acceleration of 2.0 m/s2 to the right.What is the cart's displacement during the first 6.0 s of this motion?

An auto manufacturer advertises that their car can go "from zero to sixty in eight seconds." This is a description of what characteristic of the car's motion?

Assuming equal rates of uniform acceleration in both cases,how much further would you travel if braking from 56mi/h56 \mathrm { mi } / \mathrm { h }56mi/h to rest than from 28mi/h28 \mathrm { mi } / \mathrm { h }28mi/h ?

A ball is thrown straight upward from ground level with a speed of 18 m/s.How much time passes before the ball strikes the ground if we disregard air resistance?

The figure shows a graph of the velocity of an object as a function of time.What is the acceleration of the object at the following times? (a)At 1.0 s (b)At 3.0 s

The velocity v(t)of a particle as a function of time is given by v(t)= (2.3 m/s)+ (4.1 m/s2)t - (6.2 m/s3)t2.What is the average acceleration of the particle between t = 1.0 s and t = 2.0 s?

A car increases its forward velocity uniformly from 40 m/s to 80 m/s while traveling a distance of 200 m.What is its acceleration during this time?

An object starts from rest and undergoes uniform acceleration.During the first second it travels 5.0 m.How far will it travel during the third second?

The area under a curve in a velocity versus time graph gives

When a ball is thrown straight up with no air resistance,the acceleration at its highest point

Introduction

Newtonian Mechanics

Applying Newtons Laws

Circular Motion

Impulse and Linear Momentum

Work and Energy

Extended Bodies at Rest

Rotational Motion

Gases

Static Fluids

Fluids in Motion

First Law of Thermodynamics

Second Law of Thermodynamics

Electric Charge force and Energy

The Electric Field

Dc Circuits

Magnetism

Electromagnetic Induction

Vibrational Motion

Mechanical Waves

Reflection and Refraction

Mirrors and Lenses

Wave Optics

Electromagnetic Waves

Special Relativity

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A rock is thrown upward with a speed of 12 m/s on the surface of planet X where the acceleration of objects in free fall is 1.5 m/s² and there is no atmosphere.What is the maximum height reached by the laser?

A car with good tires on a dry road can slow down at a steady rate of about 5.0 m/s² when braking.If a car is initially traveling at 55 mi/h (a)how much time does it take the car to stop? (b)what is its stopping distance?

A cart has an initial velocity of 5.0 m/s to the right and a constant acceleration of 2.0 m/s² to the right.What is the cart's displacement during the first 6.0 s of this motion?

Assuming equal rates of uniform acceleration in both cases,how much further would you travel if braking from $56 \mathrm { mi } / \mathrm { h }$ to rest than from $28 \mathrm { mi } / \mathrm { h }$ ?

The velocity v(t)of a particle as a function of time is given by v(t)= (2.3 m/s)+ (4.1 m/s²)t - (6.2 m/s³)t².What is the average acceleration of the particle between t = 1.0 s and t = 2.0 s?