For item numbers 21, refer to this situation: After being struck by a stick, a ball with a mass of 0.10 kg slows down as it rolls on a level floor. The frictional force that acts on the ball is 0.32 N, to the left. 21. What is the magnitude and direction of the ball's acceleration? 0.31 m/s^2, to the left 0.31 m/s^2, to the right 3.2 m/s^2, to the left 3.2 m/s^2, to the right

For item numbers 21, refer to this situation: After being struck by a stick, a ball with a mass of 0.10 kg slows down as it rolls on a level floor. The frictional force that acts on the ball is 0.32 N, to the left. 21. What is the magnitude and direction of the ball's acceleration? 0.31 m/s^2, to the left 0.31 m/s^2, to the right 3.2 m/s^2, to the left 3.2 m/s^2, to the right

Glencoe Physics: Principles and Problems, Student Edition

1st Edition

ISBN:9780078807213

Author:Paul W. Zitzewitz

Publisher:Paul W. Zitzewitz

Chapter5: Displacement And Force In Two Dimensions

Section: Chapter Questions

Problem 8STP

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Concept explainers

Electric Charges and Fields

One of the fundamental properties is the electromagnetic property. Charge cannot be destroyed by any process and this contributes formally to the law of charge conservation.

Question

21. What is the magnitude and direction of the ball's acceleration?

0.31 m/s^2, to the left

0.31 m/s^2, to the right

3.2 m/s^2, to the left

3.2 m/s^2, to the right

For item numbers 22 to 25, refer to this situation: A crate, with a mass of 1000 kg, is being lowered down using a rope that is attached to a pulley. The tension acting on the crate due to the rope is 7200 N, upward.

22. What is the magnitude and direction of the crate's weight?

9800 N, downward

1000 N, upward

1000 N, downward

9800 N, upward

23. What is the magnitude and direction of the net force acting on the crate?

2600 N, upward

2600 N, downward

22200 N, upward

22200 N, downward

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