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

10th Edition

ISBN:9781285737027

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter8: Rotational Equilibrium And Rotational Dynamics

Section: Chapter Questions

Problem 11WUE

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