13.A pottery wheel with a moment of inertia of 4 kg.m? and a radius of 0.2m is rotating at 40 rev/min; you wrap your finger with a wet towel and exert a radial force of 8.5N by pressing against the rim of the wheel to stop the rotation. If the coefficient of static friction between the wheel and the towel is 0.35, (I) calculate the maximum torque due to friction. (II)What is the least amount of time for the wheel to come to a stop? (III) How many revolutions the wheel has completed before it stops? (IV) What is the rotational work done by the torque causing the wheel to stop?
13.A pottery wheel with a moment of inertia of 4 kg.m? and a radius of 0.2m is rotating at 40 rev/min; you wrap your finger with a wet towel and exert a radial force of 8.5N by pressing against the rim of the wheel to stop the rotation. If the coefficient of static friction between the wheel and the towel is 0.35, (I) calculate the maximum torque due to friction. (II)What is the least amount of time for the wheel to come to a stop? (III) How many revolutions the wheel has completed before it stops? (IV) What is the rotational work done by the torque causing the wheel to stop?
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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