A stone is thrown with an initial speed of 14.8 m/s at an angle of 51° above the horizontal from the top of a 35 m building.If g = 9.8 m/s2 and air resistance is negligible,then what is the magnitude of the vertical velocity component of the rock as it hits the ground?

A) 24 m/s B) 28 m/s C) 32 m/s D) 29 m/s E) 12 m/s A) 24 m/s B) 28 m/s C) 32 m/s D) 29 m/s E) 12 m/s

A stone is thrown with an initial speed of 10.3 m/s at an angle of 51° above the horizontal from the top of a 32 m building.If g = 9.8 m/s2 and air resistance is negligible,then what is the speed of the rock as it hits the ground?

A) 26 m/s B) 6 m/s C) 27 m/s D) 32 m/s E) 22 m/s A) 26 m/s B) 6 m/s C) 27 m/s D) 32 m/s E) 22 m/s

Exam 3: Vectors and Two-Dimensional Motion

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A plane is moving due north,directly towards its destination.Its airspeed is 230 mph.A constant breeze is blowing from west to east at 30 mph.In which direction is the plane pointed?

(Multiple Choice)

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Question 21

A runner circles a track of radius 150 m in 150 s moving at a constant rate.If the runner was initially moving north,what has been the runner's average acceleration when halfway around the track?

(Multiple Choice)

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Question 22

A stone is thrown at an angle of 30° above the horizontal from the top edge of a cliff with an initial speed of 11.1 m/s.A stop watch measures the stone's trajectory time from top of cliff to bottom to be 5.5 s.What is the height of the cliff? (g = 9.8 m/s² and air resistance is negligible)

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Question 23

A baseball is thrown by the center fielder (from shoulder level)to home plate where it is caught (on the fly at shoulder level)by the catcher.At what point does the magnitude of the vertical component of velocity have its minimum value? (air resistance is negligible)

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Question 24

When we add a displacement vector to another displacement vector,the result is

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Question 25

A plane is moving due north,directly towards its destination.Its airspeed is 240 mph.A constant breeze is blowing from west to east at 50 mph.At what rate is the plane moving north?

(Multiple Choice)

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Question 26

A stone is thrown with an initial speed of 14.8 m/s at an angle of 51° above the horizontal from the top of a 35 m building.If g = 9.8 m/s² and air resistance is negligible,then what is the magnitude of the vertical velocity component of the rock as it hits the ground?

(Multiple Choice)

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Question 27

A taxicab moves five blocks due north,six blocks due east,and another three blocks due north.Assume all blocks are of equal size.What is the magnitude of the taxi's displacement,start to finish?

(Multiple Choice)

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Question 28

A rifle is aimed horizontally toward the center of a target 110 m away.If the bullet strikes 10 cm below the center,what was the velocity of the bullet? (Ignore air friction. )

(Multiple Choice)

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Question 29

A stone is thrown at an angle of 45° above the horizontal from the top edge of a cliff with an initial speed of 15 m/s.A stop watch measures the stone's trajectory time from top of cliff to bottom to be 5.4 s.How far out from the cliff's edge does the stone travel horizontally? (g = 9.8 m/s² and air resistance is negligible)

(Multiple Choice)

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Question 30

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

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Question 31

Vector 1 is 8 units long and is at 225°.Vector 2 is 5 units long and is at 120°.Vector 3 is 4 units long and is at 70°.Which vector has equal magnitude components?

(Multiple Choice)

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Question 32

When we subtract a velocity vector from another velocity vector,the result is

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Question 33

A stone is thrown with an initial speed of 10.3 m/s at an angle of 51° above the horizontal from the top of a 32 m building.If g = 9.8 m/s² and air resistance is negligible,then what is the speed of the rock as it hits the ground?

(Multiple Choice)

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Question 34

A ball is launched from ground level at 28 m/s at an angle of 37° above the horizontal.How far does it go before it is at ground level again?

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Question 35

Arvin the Ant travels 35 cm eastward,then 20 cm northward,and finally 10 cm westward.What is Arvin's direction of displacement with respect to his original position?

(Multiple Choice)

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Question 36

A car is initially moving at 20 m/s east,and a little while later it is moving at 10 m/s north.Which of the following best describes the orientation of the average acceleration during this time interval?

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Question 37

Plane A is flying at 440 mph in the northeast direction relative to the earth.Plane B is flying at 550 mph in the north direction relative to the earth.What is the speed of Plane B as observed from Plane A?

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Question 38

VectorIs 3.0 units in length and points along the positive x-axis;vector Is 7.0 units in length and points along a direction 150° from the positive x-axis.What is the direction of the resultant with respect to the positive x-axis?

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Question 39

A jet airliner moving at 530 mph due east moves into a region where the wind is blowing at 120 mph in a direction 30° north of east.What is the new velocity and direction of the aircraft?

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Question 40

Showing 21 - 40 of 74

Exam 3: Vectors and Two-Dimensional Motion

A plane is moving due north,directly towards its destination.Its airspeed is 230 mph.A constant breeze is blowing from west to east at 30 mph.In which direction is the plane pointed? ​

A runner circles a track of radius 150 m in 150 s moving at a constant rate.If the runner was initially moving north,what has been the runner's average acceleration when halfway around the track? ​

A stone is thrown at an angle of 30° above the horizontal from the top edge of a cliff with an initial speed of 11.1 m/s.A stop watch measures the stone's trajectory time from top of cliff to bottom to be 5.5 s.What is the height of the cliff? (g = 9.8 m/s2 and air resistance is negligible) ​

A baseball is thrown by the center fielder (from shoulder level)to home plate where it is caught (on the fly at shoulder level)by the catcher.At what point does the magnitude of the vertical component of velocity have its minimum value? (air resistance is negligible)

When we add a displacement vector to another displacement vector,the result is

A plane is moving due north,directly towards its destination.Its airspeed is 240 mph.A constant breeze is blowing from west to east at 50 mph.At what rate is the plane moving north? ​

A stone is thrown with an initial speed of 14.8 m/s at an angle of 51° above the horizontal from the top of a 35 m building.If g = 9.8 m/s2 and air resistance is negligible,then what is the magnitude of the vertical velocity component of the rock as it hits the ground? ​

A taxicab moves five blocks due north,six blocks due east,and another three blocks due north.Assume all blocks are of equal size.What is the magnitude of the taxi's displacement,start to finish? ​

A rifle is aimed horizontally toward the center of a target 110 m away.If the bullet strikes 10 cm below the center,what was the velocity of the bullet? (Ignore air friction. ) ​

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

Vector 1 is 8 units long and is at 225°.Vector 2 is 5 units long and is at 120°.Vector 3 is 4 units long and is at 70°.Which vector has equal magnitude components? ​

When we subtract a velocity vector from another velocity vector,the result is

A stone is thrown with an initial speed of 10.3 m/s at an angle of 51° above the horizontal from the top of a 32 m building.If g = 9.8 m/s2 and air resistance is negligible,then what is the speed of the rock as it hits the ground? ​

A ball is launched from ground level at 28 m/s at an angle of 37° above the horizontal.How far does it go before it is at ground level again? ​

Arvin the Ant travels 35 cm eastward,then 20 cm northward,and finally 10 cm westward.What is Arvin's direction of displacement with respect to his original position? ​

A car is initially moving at 20 m/s east,and a little while later it is moving at 10 m/s north.Which of the following best describes the orientation of the average acceleration during this time interval?

Plane A is flying at 440 mph in the northeast direction relative to the earth.Plane B is flying at 550 mph in the north direction relative to the earth.What is the speed of Plane B as observed from Plane A? ​

VectorIs 3.0 units in length and points along the positive x-axis;vector Is 7.0 units in length and points along a direction 150° from the positive x-axis.What is the direction of the resultant with respect to the positive x-axis? ​

A jet airliner moving at 530 mph due east moves into a region where the wind is blowing at 120 mph in a direction 30° north of east.What is the new velocity and direction of the aircraft? ​

Introduction

Introduction: Part A

Motion in One Dimension

Motion in One Dimension: Part A

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

A plane is moving due north,directly towards its destination.Its airspeed is 230 mph.A constant breeze is blowing from west to east at 30 mph.In which direction is the plane pointed?

A runner circles a track of radius 150 m in 150 s moving at a constant rate.If the runner was initially moving north,what has been the runner's average acceleration when halfway around the track?

A stone is thrown at an angle of 30° above the horizontal from the top edge of a cliff with an initial speed of 11.1 m/s.A stop watch measures the stone's trajectory time from top of cliff to bottom to be 5.5 s.What is the height of the cliff? (g = 9.8 m/s² and air resistance is negligible)

A plane is moving due north,directly towards its destination.Its airspeed is 240 mph.A constant breeze is blowing from west to east at 50 mph.At what rate is the plane moving north?

A stone is thrown with an initial speed of 14.8 m/s at an angle of 51° above the horizontal from the top of a 35 m building.If g = 9.8 m/s² and air resistance is negligible,then what is the magnitude of the vertical velocity component of the rock as it hits the ground?

A taxicab moves five blocks due north,six blocks due east,and another three blocks due north.Assume all blocks are of equal size.What is the magnitude of the taxi's displacement,start to finish?

A rifle is aimed horizontally toward the center of a target 110 m away.If the bullet strikes 10 cm below the center,what was the velocity of the bullet? (Ignore air friction. )

Vector 1 is 8 units long and is at 225°.Vector 2 is 5 units long and is at 120°.Vector 3 is 4 units long and is at 70°.Which vector has equal magnitude components?

A stone is thrown with an initial speed of 10.3 m/s at an angle of 51° above the horizontal from the top of a 32 m building.If g = 9.8 m/s² and air resistance is negligible,then what is the speed of the rock as it hits the ground?

A ball is launched from ground level at 28 m/s at an angle of 37° above the horizontal.How far does it go before it is at ground level again?

Arvin the Ant travels 35 cm eastward,then 20 cm northward,and finally 10 cm westward.What is Arvin's direction of displacement with respect to his original position?

Plane A is flying at 440 mph in the northeast direction relative to the earth.Plane B is flying at 550 mph in the north direction relative to the earth.What is the speed of Plane B as observed from Plane A?

VectorIs 3.0 units in length and points along the positive x-axis;vector Is 7.0 units in length and points along a direction 150° from the positive x-axis.What is the direction of the resultant with respect to the positive x-axis?

A jet airliner moving at 530 mph due east moves into a region where the wind is blowing at 120 mph in a direction 30° north of east.What is the new velocity and direction of the aircraft?