A machine part has the shape of a solid uniform sphere of mass 255 g and diameter 2.50 cm . It is spinning about a frictionless axle through its center, but at one point on its equator it is scraping against metal, resuiting in a friction force of 0.0200 N at that point. Part A Find its angular acceleration. Let the direction the sphere is spinning be the positive sense of rotation. Express your answer in radians per second squared. For related problem-solving tips and strategies, you may want to view a Video Tutor Solution of An unwinding cable ii. ? a = rad/s? Submit Request Answer Part B How long will it take to decrease its rotational speed by 27.0 rad/s ? Express your answer in seconds. ΑΣφ. ? t =

A machine part has the shape of a solid uniform sphere of mass 255 g and diameter 2.50 cm . It is spinning about a frictionless axle through its center, but at one point on its equator it is scraping against metal, resuiting in a friction force of 0.0200 N at that point. Part A Find its angular acceleration. Let the direction the sphere is spinning be the positive sense of rotation. Express your answer in radians per second squared. For related problem-solving tips and strategies, you may want to view a Video Tutor Solution of An unwinding cable ii. ? a = rad/s? Submit Request Answer Part B How long will it take to decrease its rotational speed by 27.0 rad/s ? Express your answer in seconds. ΑΣφ. ? t =

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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