The instantaneous velocity of a particle at t1 is represented by 1, and at t2 by 2. Each heavy graph division is 10 m/s on each side. Let t1 = 1 s and t2 = 7 s. Then the average acceleration of the particle between time t1 and t2 is

A) 18.2 m/s2 at 0º B) 15.0 m/s2 at 180º C) 6.06 m/s2 at 98º D) 5.00 m/s2 at 180º E) 3.03 m/s2 at 98º A) 18.2 m/s2 at 0º B) 15.0 m/s2 at 180º C) 6.06 m/s2 at 98º D) 5.00 m/s2 at 180º E) 3.03 m/s2 at 98º

A projectile is fired horizontally in Earth gravity with an initial speed v0. In the absence of air resistance, which of the following graphs is representative of the projectile's motion?

A) 1 B) 2 C) 3 D) 4 E) 5 A) 1 B) 2 C) 3 D) 4 E) 5

Exam 3: Motion in Two and Three Dimensions

A river is 0.76 km wide. The banks are straight and parallel. The current is 5.0 km/h and is parallel to the banks. A boat has a maximum speed of 3 km/h in still water. The pilot of the boat wishes to travel on a straight line from A to B, where AB is perpendicular to the banks. The pilot should

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Question 41

A naughty squirrel jumps from a tree limb onto a birdfeeder. The tree limb is 4.5 m above the ground and the top of the birdfeeder is 1.5 m above the ground. If the squirrel jumps horizontally with a velocity of 2.5 m/s then how far away in the horizontal direction can the bird feeder be for the squirrel to just make it onto the top of the feeder.

(Multiple Choice)

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Question 42

An automobile is moving toward the east at 50 km/h, and the wind is from the north at 50 km/h. Which vector in the figure represents the wind velocity as observed by a passenger in the car?

(Multiple Choice)

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Question 43

A car is traveling east at 50 km/h. It rounds a curve, and 5 s later it is traveling north at 50 km/h. The magnitude of the average acceleration of the car is

(Multiple Choice)

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Question 44

A train, starting from rest, accelerates along the platform at a uniform rate of 0.6 m/s². A passenger standing on the platform is 5 m away from the door when the train starts to pull away and heads toward the door at acceleration of 1.2 m/s². How far away from the door is the passenger after 3 seconds?

(Multiple Choice)

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Question 45

A plane is flying horizontally at a height of 500 m and a constant speed of 429 km/h when an object is projected vertically downward at an initial speed of 35.0 m/s. If air resistance is neglected, the average vertical component of velocity between the object's release and its striking the ground is

(Multiple Choice)

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Question 46

The position vector of an object is given by and 4 s later, its position vector is . The units are in m. The magnitude of the change in the position vector is

(Multiple Choice)

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Question 47

A merry-go-round completes one revolution in 40 s. What is the centripetal acceleration of a rider located at a distance 2 m from the center of the merry go-round?

(Multiple Choice)

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Question 48

Use the following to answer question : -The figure represents the parabolic trajectory of a ball going from A to E in Earth gravity but without air resistance. What is the direction of the acceleration at point C?

(Multiple Choice)

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Question 49

Which of the following statements is not true of a projectile moving near the surface of the earth against negligible air resistance?

(Multiple Choice)

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Question 50

The instantaneous velocity of a particle at t₁ is represented by ₁, and at t₂ by ₂. Each heavy graph division is 10 m/s on each side. Let t₁ = 1 s and t₂ = 7 s. Then the average acceleration of the particle between time t₁ and t₂ is

(Multiple Choice)

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Question 51

A projectile is fired horizontally in Earth gravity with an initial speed v₀. In the absence of air resistance, which of the following graphs is representative of the projectile's motion?

(Multiple Choice)

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Question 52

The figure shows the position of the moon at two times, about 7 days apart. Which vector best represents the change in the moon's velocity in this time interval?

(Multiple Choice)

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Question 53

Use the diagram to answer question. The curve shows the position of an object with time. The object moves with a constant speed, v. -Which of the vector diagrams below best represent the change in position vector from P₁ to P₂?

(Multiple Choice)

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Question 54

A baseball is thrown with a velocity $A baseball is thrown with a velocity at an angle \theta with the horizontal. The horizontal component of its velocity in the absence of air resistance is$ at an angle $\theta$ with the horizontal. The horizontal component of its velocity in the absence of air resistance is

(Multiple Choice)

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Question 55

A vector has an x component of -5.51 units and a y component of +9.52 units. The angle between the positive direction of the vector and the positive direction of the x axis is

(Multiple Choice)

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Question 56

A ball is whirled in a horizontal circle of radius r and speed v. The radius is increased to 2r keeping the speed of the ball constant. The period of the ball changes by a factor of

(Multiple Choice)

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Question 57

An airplane is heading due east. The airspeed indicator shows that the plane is moving at a speed of 370 km/h relative to the air. If the wind is blowing from the south at 92.5 km/h, the velocity of the airplane relative to the ground is

(Multiple Choice)

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Question 58

A pilot wants the heading of an airplane to be 45º east of north. The wind is from 270º at 32 km/h, and the speed of the airplane through the air is 320 km/h. The pilot should maintain a heading of approximately

(Multiple Choice)

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Question 59

Use the diagram to answer question. The curve shows the position of an object with time. The object moves with a constant speed, v. -Which of the vector diagrams below best represent the change in velocity vector from P₁ to P₂?

(Multiple Choice)

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Question 60

Showing 41 - 60 of 67

A river is 0.76 km wide. The banks are straight and parallel. The current is 5.0 km/h and is parallel to the banks. A boat has a maximum speed of 3 km/h in still water. The pilot of the boat wishes to travel on a straight line from A to B, where AB is perpendicular to the banks. The pilot should

An automobile is moving toward the east at 50 km/h, and the wind is from the north at 50 km/h. Which vector in the figure represents the wind velocity as observed by a passenger in the car?

A car is traveling east at 50 km/h. It rounds a curve, and 5 s later it is traveling north at 50 km/h. The magnitude of the average acceleration of the car is

A plane is flying horizontally at a height of 500 m and a constant speed of 429 km/h when an object is projected vertically downward at an initial speed of 35.0 m/s. If air resistance is neglected, the average vertical component of velocity between the object's release and its striking the ground is

The position vector of an object is given by and 4 s later, its position vector is . The units are in m. The magnitude of the change in the position vector is

A merry-go-round completes one revolution in 40 s. What is the centripetal acceleration of a rider located at a distance 2 m from the center of the merry go-round?

Use the following to answer question : -The figure represents the parabolic trajectory of a ball going from A to E in Earth gravity but without air resistance. What is the direction of the acceleration at point C?

Which of the following statements is not true of a projectile moving near the surface of the earth against negligible air resistance?

The instantaneous velocity of a particle at t₁ is represented by ₁, and at t₂ by ₂. Each heavy graph division is 10 m/s on each side. Let t₁ = 1 s and t₂ = 7 s. Then the average acceleration of the particle between time t₁ and t₂ is

A projectile is fired horizontally in Earth gravity with an initial speed v₀. In the absence of air resistance, which of the following graphs is representative of the projectile's motion?

The figure shows the position of the moon at two times, about 7 days apart. Which vector best represents the change in the moon's velocity in this time interval?

Use the diagram to answer question. The curve shows the position of an object with time. The object moves with a constant speed, v. -Which of the vector diagrams below best represent the change in position vector from P₁ to P₂?

A vector has an x component of -5.51 units and a y component of +9.52 units. The angle between the positive direction of the vector and the positive direction of the x axis is

A ball is whirled in a horizontal circle of radius r and speed v. The radius is increased to 2r keeping the speed of the ball constant. The period of the ball changes by a factor of

An airplane is heading due east. The airspeed indicator shows that the plane is moving at a speed of 370 km/h relative to the air. If the wind is blowing from the south at 92.5 km/h, the velocity of the airplane relative to the ground is

A pilot wants the heading of an airplane to be 45º east of north. The wind is from 270º at 32 km/h, and the speed of the airplane through the air is 320 km/h. The pilot should maintain a heading of approximately

Use the diagram to answer question. The curve shows the position of an object with time. The object moves with a constant speed, v. -Which of the vector diagrams below best represent the change in velocity vector from P₁ to P₂?

Systems of Measurement

Motion in One Dimension

Newtons Laws

Applications of Newtons Laws

Work and Energy

Conservation of Energy

Systems of Particles and Conservation of Linear Momentum

Rotation

Conservation of Angular Momentum

Gravity

Static Equilibrium and Elasticity

Fluids

Oscillations

Wave Motion

Superposition and Standing Waves

Temperature and the Kinetic Theory of Gases

Heat and the First Law of Thermodynamics

The Second Law of Thermodynamics

Thermal Properties and Processes

Filters

Exam 3: Motion in Two and Three Dimensions

A river is 0.76 km wide. The banks are straight and parallel. The current is 5.0 km/h and is parallel to the banks. A boat has a maximum speed of 3 km/h in still water. The pilot of the boat wishes to travel on a straight line from A to B, where AB is perpendicular to the banks. The pilot should

An automobile is moving toward the east at 50 km/h, and the wind is from the north at 50 km/h. Which vector in the figure represents the wind velocity as observed by a passenger in the car?

A car is traveling east at 50 km/h. It rounds a curve, and 5 s later it is traveling north at 50 km/h. The magnitude of the average acceleration of the car is

The position vector of an object is given by and 4 s later, its position vector is . The units are in m. The magnitude of the change in the position vector is

A merry-go-round completes one revolution in 40 s. What is the centripetal acceleration of a rider located at a distance 2 m from the center of the merry go-round?

Use the following to answer question : -The figure represents the parabolic trajectory of a ball going from A to E in Earth gravity but without air resistance. What is the direction of the acceleration at point C?

Which of the following statements is not true of a projectile moving near the surface of the earth against negligible air resistance?

The instantaneous velocity of a particle at t1 is represented by 1, and at t2 by 2. Each heavy graph division is 10 m/s on each side. Let t1 = 1 s and t2 = 7 s. Then the average acceleration of the particle between time t1 and t2 is

A projectile is fired horizontally in Earth gravity with an initial speed v0. In the absence of air resistance, which of the following graphs is representative of the projectile's motion?

The figure shows the position of the moon at two times, about 7 days apart. Which vector best represents the change in the moon's velocity in this time interval?

Use the diagram to answer question. The curve shows the position of an object with time. The object moves with a constant speed, v. -Which of the vector diagrams below best represent the change in position vector from P1 to P2?

A baseball is thrown with a velocity at an angle θ\thetaθ with the horizontal. The horizontal component of its velocity in the absence of air resistance is

A vector has an x component of -5.51 units and a y component of +9.52 units. The angle between the positive direction of the vector and the positive direction of the x axis is

A ball is whirled in a horizontal circle of radius r and speed v. The radius is increased to 2r keeping the speed of the ball constant. The period of the ball changes by a factor of

An airplane is heading due east. The airspeed indicator shows that the plane is moving at a speed of 370 km/h relative to the air. If the wind is blowing from the south at 92.5 km/h, the velocity of the airplane relative to the ground is

A pilot wants the heading of an airplane to be 45º east of north. The wind is from 270º at 32 km/h, and the speed of the airplane through the air is 320 km/h. The pilot should maintain a heading of approximately

Use the diagram to answer question. The curve shows the position of an object with time. The object moves with a constant speed, v. -Which of the vector diagrams below best represent the change in velocity vector from P1 to P2?

Systems of Measurement

Motion in One Dimension

Newtons Laws

Applications of Newtons Laws

Work and Energy

Conservation of Energy

Systems of Particles and Conservation of Linear Momentum

Rotation

Conservation of Angular Momentum

Gravity

Static Equilibrium and Elasticity

Fluids

Oscillations

Wave Motion

Superposition and Standing Waves

Temperature and the Kinetic Theory of Gases

Heat and the First Law of Thermodynamics

The Second Law of Thermodynamics

Thermal Properties and Processes

Filters

The instantaneous velocity of a particle at t₁ is represented by ₁, and at t₂ by ₂. Each heavy graph division is 10 m/s on each side. Let t₁ = 1 s and t₂ = 7 s. Then the average acceleration of the particle between time t₁ and t₂ is

A projectile is fired horizontally in Earth gravity with an initial speed v₀. In the absence of air resistance, which of the following graphs is representative of the projectile's motion?

Use the diagram to answer question. The curve shows the position of an object with time. The object moves with a constant speed, v. -Which of the vector diagrams below best represent the change in position vector from P₁ to P₂?

Use the diagram to answer question. The curve shows the position of an object with time. The object moves with a constant speed, v. -Which of the vector diagrams below best represent the change in velocity vector from P₁ to P₂?