College Physics
College Physics
11th Edition
ISBN: 9781305952300
Author: Raymond A. Serway, Chris Vuille
Publisher: Cengage Learning
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Question

What is the angular acceleration and how long will it take to decrease rotational speed by 27 rad/s?

A machine part has the shape of a solid uniform sphere of mass 210 g and diameter 3.50 cm. It is spinning about a frictionless axle through its center but at one point on its equator it is scraping against metal, resulting in a friction force of 0.0200 N at that point. You may want to review (Pages 306 - 309) . For related problem-solving tips and strategies, you may want to view a Video Tutor Solution of An unwinding cable i.
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Transcribed Image Text:A machine part has the shape of a solid uniform sphere of mass 210 g and diameter 3.50 cm. It is spinning about a frictionless axle through its center but at one point on its equator it is scraping against metal, resulting in a friction force of 0.0200 N at that point. You may want to review (Pages 306 - 309) . For related problem-solving tips and strategies, you may want to view a Video Tutor Solution of An unwinding cable i.
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