An airplane of mass 1.2 *104 kg tows a glider of mass 0.6 * 104 kg. The airplane propellers provide a net forward thrust of 5.4 * 104 N. What is the glider's acceleration?

A) 2.0 m/s2 B) 3.0 m/s2 C) 6.0 m/s2 D) 9.8 m/s2 A) 2.0 m/s2 B) 3.0 m/s2 C) 6.0 m/s2 D) 9.8 m/s2

Two forces act on a 6.00-kg object. One of the forces is 11.0 N. If the object accelerates at 2.00 m/s2, what is the greatest possible magnitude of the other force?

A) 33.0 N B) 23.0 N C) 3.0 N D) 1.0 N A) 33.0 N B) 23.0 N C) 3.0 N D) 1.0 N

Exam 2: Motion, Forces, and Newtons Laws

On a velocity-time graph for a particle, suppose the plot starts at some positive velocity and then follows a straight line to zero at a later time. Which of the following must be true about a position vs. time graph for this same time interval?

(Multiple Choice)

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Question 21

Arvin the Ant is on a picnic table. He travels 30 cm eastward, then 20 cm northward, and finally 15 cm westward. What is the magnitude of Arvin's net displacement?

(Multiple Choice)

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Question 22

A 7.0-kg bowling ball experiences a net force of 6.0 N. What will be its acceleration?

(Multiple Choice)

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Question 23

A change in a physical quantity w having initial value w_i and final value w_fis given by which of the following?

(Multiple Choice)

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Question 24

A bird, accelerating from rest at a constant rate, experiences a displacement of 37 m in 11 s. What is its acceleration?

(Multiple Choice)

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Question 25

An airplane of mass 1.2 10⁴ kg tows a glider of mass 0.6 10⁴ kg. The airplane propellers provide a net forward thrust of 5.4 * 10⁴ N. What is the glider's acceleration?

(Multiple Choice)

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Question 26

Which of the following expresses a principle which was initially stated by Galileo and was later incorporated into Newton's laws of motion?

(Multiple Choice)

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Question 27

The statement by Newton that "for every action there is an opposite but equal reaction" is regarded as which of his laws of motion?

(Multiple Choice)

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Question 28

The value of an object's acceleration may be characterized in equivalent words by which of the following?

(Multiple Choice)

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Question 29

A car is moving along a straight highway and accelerates at a constant rate while going from point A to point B. If the acceleration is positive, increasing the speed of the car, where does the position where the instantaneous speed equals the average speed occur for the interval from A to B?

(Multiple Choice)

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Question 30

Two forces act on a 6.00-kg object. One of the forces is 11.0 N. If the object accelerates at 2.00 m/s², what is the greatest possible magnitude of the other force?

(Multiple Choice)

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Question 31

Five boys are pushing on a snowball, and each is pushing with a force of 20.0 N. However, each boy is pushing in a different direction. They are pushing north, northeast, east, southeast, and south. (Each boy is pushing at an angle of 45.0 $\degree$ relative to his neighbor.) What is the magnitude of the total force on the ball?

(Multiple Choice)

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Question 32

Which of the following is not a vector quantity?

(Multiple Choice)

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Question 33

If a is acceleration, v is velocity, x is position, and t is time, then which equation is not dimensionally correct?

(Multiple Choice)

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Question 34

If we know that a nonzero net force is acting on an object, which of the following must we assume regarding the object's condition? The object is:

(Multiple Choice)

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Question 35

In the case of constant acceleration, the average velocity equals the instantaneous velocity:

(Multiple Choice)

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Question 36

The first displacement is 7 m and the second displacement is 3 m. They cannot add together to give a total displacement of:

(Multiple Choice)

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Question 37

An x-t graph is drawn for a ball moving in one direction. The graph starts at the origin and at t = 6 s the velocity of the ball is zero. We can be positive that at t = 6 s,

(Multiple Choice)

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Question 38

An object moves 10 m east in 30 s and then returns to its starting point taking an additional 70 s. If west is chosen as the positive direction, what is the average speed of the object?

(Multiple Choice)

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Question 39

Changing the positive direction in a reference frame to the opposite direction does not change the sign of which of the following quantities?

(Multiple Choice)

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Question 40

Showing 21 - 40 of 61

Exam 2: Motion, Forces, and Newtons Laws

On a velocity-time graph for a particle, suppose the plot starts at some positive velocity and then follows a straight line to zero at a later time. Which of the following must be true about a position vs. time graph for this same time interval?

Arvin the Ant is on a picnic table. He travels 30 cm eastward, then 20 cm northward, and finally 15 cm westward. What is the magnitude of Arvin's net displacement?

A 7.0-kg bowling ball experiences a net force of 6.0 N. What will be its acceleration?

A change in a physical quantity w having initial value wi and final value wf is given by which of the following?

A bird, accelerating from rest at a constant rate, experiences a displacement of 37 m in 11 s. What is its acceleration?

An airplane of mass 1.2 *104 kg tows a glider of mass 0.6 * 104 kg. The airplane propellers provide a net forward thrust of 5.4 * 104 N. What is the glider's acceleration?

Which of the following expresses a principle which was initially stated by Galileo and was later incorporated into Newton's laws of motion?

The statement by Newton that "for every action there is an opposite but equal reaction" is regarded as which of his laws of motion?

The value of an object's acceleration may be characterized in equivalent words by which of the following?

A car is moving along a straight highway and accelerates at a constant rate while going from point A to point B. If the acceleration is positive, increasing the speed of the car, where does the position where the instantaneous speed equals the average speed occur for the interval from A to B?

Two forces act on a 6.00-kg object. One of the forces is 11.0 N. If the object accelerates at 2.00 m/s2, what is the greatest possible magnitude of the other force?

Which of the following is not a vector quantity?

If a is acceleration, v is velocity, x is position, and t is time, then which equation is not dimensionally correct?

If we know that a nonzero net force is acting on an object, which of the following must we assume regarding the object's condition? The object is:

In the case of constant acceleration, the average velocity equals the instantaneous velocity:

The first displacement is 7 m and the second displacement is 3 m. They cannot add together to give a total displacement of:

An x-t graph is drawn for a ball moving in one direction. The graph starts at the origin and at t = 6 s the velocity of the ball is zero. We can be positive that at t = 6 s,

An object moves 10 m east in 30 s and then returns to its starting point taking an additional 70 s. If west is chosen as the positive direction, what is the average speed of the object?

Changing the positive direction in a reference frame to the opposite direction does not change the sign of which of the following quantities?

Introduction

Forces and Motion in One Dimension

Forces and Motion in Two and Three Dimensions

Circular Motion and Gravitation

Work and Energy

Momentum, Impulse, and Collisions

Rotational Motion

Energy and Momentum of Rotational Motion

Fluids

Harmonic Motion and Elasticity

Waves

Sound

Temperature and Heat

Gases and Kinetic Theory

Thermodynamics

Electric Forces and Fields

Electric Potential

Electric Currents and Circuits

Magnetic Fields and Forces

Magnetic Induction

Alternating-Current Circuits and Machines

Electromagnetic Waves

Geometrical Optics

Wave Optics

Applications of Optics

Relativity

Quantum Theory

Atomic Theory

Nuclear Physics

Physics in the 21st Century

Filters

A change in a physical quantity w having initial value w_i and final value w_fis given by which of the following?

An airplane of mass 1.2 10⁴ kg tows a glider of mass 0.6 10⁴ kg. The airplane propellers provide a net forward thrust of 5.4 * 10⁴ N. What is the glider's acceleration?

Two forces act on a 6.00-kg object. One of the forces is 11.0 N. If the object accelerates at 2.00 m/s², what is the greatest possible magnitude of the other force?