Answered: A force of 10 N is needed to set a 250…

Glencoe Physics: Principles and Problems, Student Edition

1st Edition

ISBN:9780078807213

Author:Paul W. Zitzewitz

Publisher:Paul W. Zitzewitz

Chapter1: A Physics Toolkit

Section: Chapter Questions

Problem 7STP

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A force of 10 N is needed to set a 250 N box across the floor. What is the coefficient of friction between box and floor? a) 0.04 b) 0.08 c) 0.25 D) 2.50 6. In Newton's third law, the action and reaction forces a) act on the same body. b) act on different bodies. C) are inversely proportional. D) are perpendicular to each other. 7. How is it possible for a large force to produce a small or even zero torque? a) When the force produces clockwise rotation. b) When the force produces counter-clockwise rotation. c) When the lever arm is perpendicular to the line of action of the force. d.)When the force passes through the point of rotation.

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