A basketball is rolling without sliding up and down a ramp at an incline. Which of the following statements is true A) More than one answer is correct. B) When the ball rolls down the ramp, the force of friction is pointing down the ramp. C) When the ball rolls up the ramp, the force of friction is pointing up the ramp. D) When the ball rolls down the ramp, the friction is pointing up the ramp. E) When the ball rolls up the ramp, the force of friction is pointing down the ramp.

A basketball is rolling without sliding up and down a ramp at an incline. Which of the following statements is true A) More than one answer is correct. B) When the ball rolls down the ramp, the force of friction is pointing down the ramp. C) When the ball rolls up the ramp, the force of friction is pointing up the ramp. D) When the ball rolls down the ramp, the friction is pointing up the ramp. E) When the ball rolls up the ramp, the force of friction is pointing down the ramp.

Glencoe Physics: Principles and Problems, Student Edition

1st Edition

ISBN:9780078807213

Author:Paul W. Zitzewitz

Publisher:Paul W. Zitzewitz

Chapter4: Forces In One Dimension

Section4.3: Newton's Third Law

Problem 32PP

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A basketball is rolling without sliding up and down a ramp at an incline. Which of the following statements is true

A) More than one answer is correct.

B) When the ball rolls down the ramp, the force of friction is pointing down the ramp.

C) When the ball rolls up the ramp, the force of friction is pointing up the ramp.

D) When the ball rolls down the ramp, the friction is pointing up the ramp.

E) When the ball rolls up the ramp, the force of friction is pointing down the ramp.

Definition Definition Force that opposes motion when the surface of one item rubs against the surface of another. The unit of force of friction is same as the unit of force.

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