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 in One Dimension: Part A

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A strobe photograph shows equally spaced images of a car moving along a straight road.If the time intervals between images is constant,which of the following cannot be positive?

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Question 21

An object moves at a constant velocity of 12 m/s to the southwest for an interval of 20 s.Halfway through this interval,what is the magnitude of its instantaneous velocity?

(Multiple Choice)

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Question 22

A hiker walks 200 m east and then walks 100 m north.In what direction is her resulting displacement?

(Multiple Choice)

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Question 23

Displacement is which of the following types of quantities?

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Question 24

A 50-g ball traveling at 25.0 m/s is bounced off a brick wall and rebounds at 20.0 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 magnitude of the average acceleration of the ball during this time interval?

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Question 25

A ball is thrown vertically upwards at 9.8 m/s.For its complete trip (up and back down to the starting position),its average velocity is:

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Question 26

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?

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Question 27

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

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Question 28

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?

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Question 29

A bird,accelerating from rest at a constant rate,experiences a displacement of 37 m in 11 s.What is the final velocity after 11 s?

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Question 30

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 31

Which formula is dimensionally consistent with an expression yielding a value for velocity? (a is acceleration,x is distance,and t is time)

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Question 32

A truck moves 70 m west,then moves 120 m east,and finally moves west again a distance of 90 m.If east is chosen as the positive direction,what is the truck's resultant displacement?

(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

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 35

An automobile of mass 2000 kg moving at 20 m/s is braked suddenly with a constant braking force of 10,000 N.How far does the car travel before stopping?

(Multiple Choice)

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Question 36

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,

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Question 37

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° relative to his neighbor. )What is the magnitude of the total force on the ball?

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Question 38

A car is moving in the positive direction 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,when does the position where the average speed equals the instantaneous speed occur during the time interval from A to B? Assume the time interval is T.

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Question 39

A jogger runs halfway around a circular path with a radius of 70 m.What,respectively,are the magnitude of the displacement and the distance jogged?

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Question 40

Showing 21 - 40 of 42

Exam 2: Motion in One Dimension: Part A

A strobe photograph shows equally spaced images of a car moving along a straight road.If the time intervals between images is constant,which of the following cannot be positive?

An object moves at a constant velocity of 12 m/s to the southwest for an interval of 20 s.Halfway through this interval,what is the magnitude of its instantaneous velocity?

A hiker walks 200 m east and then walks 100 m north.In what direction is her resulting displacement?

Displacement is which of the following types of quantities?

A 50-g ball traveling at 25.0 m/s is bounced off a brick wall and rebounds at 20.0 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 magnitude of the average acceleration of the ball during this time interval?

A ball is thrown vertically upwards at 9.8 m/s.For its complete trip (up and back down to the starting position),its average velocity is:

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?

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?

A bird,accelerating from rest at a constant rate,experiences a displacement of 37 m in 11 s.What is the final velocity after 11 s?

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 formula is dimensionally consistent with an expression yielding a value for velocity? (a is acceleration,x is distance,and t is time)

A truck moves 70 m west,then moves 120 m east,and finally moves west again a distance of 90 m.If east is chosen as the positive direction,what is the truck's resultant displacement?

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

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?

An automobile of mass 2000 kg moving at 20 m/s is braked suddenly with a constant braking force of 10,000 N.How far does the car travel before stopping?

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,

A jogger runs halfway around a circular path with a radius of 70 m.What,respectively,are the magnitude of the displacement and the distance jogged?

Introduction

Introduction: Part A

Motion in One Dimension

Vectors and Two-Dimensional Motion

Vectors and Two-Dimensional Motion: Part A

The Laws of Motion

The Laws of Motion: Part A

Energy

Energy: Part A

Momentum and Collisions

Momentum and Collisions: Part A

Rotational Motion and the Law of Gravity

Rotational Motion and the Law of Gravity: Part A

Rotational Equilibrium and Rotational Dynamics

Rotational Equilibrium and Rotational Dynamics: Part A

Solids and Fluids

Solids and Fluids: Part A

Thermal Physics

Thermal Physics: Part A

Energy in Thermal Processes Heat and Internal Energy

Energy in Thermal Processes Heat and Internal Energy: Part A

The Laws of Thermodynamics Work in Thermodynamic Processes

The Laws of Thermodynamics Work in Thermodynamic Processes: Part A

Vibrations and Waves

Vibrations and Waves: Part A

Sound

Sound: Part A

Electric Forces and Electric Fields

Electric Forces and Electric Fields: Part A

Electrical Energy and Capacitance

Electrical Energy and Capacitance: Part A

Current and Resistance Electric Current

Current and Resistance Electric Current: Part A

Direct-Current Circuits Sources of EMF

Direct-Current Circuits Sources of EMF: Part A

Magnetism Magnets

Magnetism Magnets: Part A

Induced Voltages and Inductance

Induced Voltages and Inductance: Part A

Alternating-Current Circuits and Electromagnetic Waves

Alternating-Current Circuits and Electromagnetic Waves: Part A

Reflection and Refraction of Light

Reflection and Refraction of Light: Part A

Mirrors and Lenses

Mirrors and Lenses: Part A

Wave Optics

Wave Optics: Part A

Optical Instruments

Optical Instruments: Part A

Relativity

Relativity: Part A

Quantum Physics Blackbody Radiation and Plancks Hypothesis

Quantum Physics Blackbody Radiation and Plancks Hypothesis: Part A

Atomic Physics

Atomic Physics: Part A

Nuclear Physics

Nuclear Physics: Part A

Nuclear Energy and Elementary Particles

Nuclear Energy and Elementary Particles: Part A

Particle Collisions, Mediating Photons, and Quark Structures: Exploring the Fundamentals of Physics

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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?