A string is wrapped around a disk of mass m = 2.4 kg and radius R = 0.12 m. Starting from rest, you pull the string with a constant force F = 6 N along a nearly frictionless surface. At the instant when the center of the disk has moved a distance x = 0.16 m, your hand has moved a distance of d = 0.32 m. m = F d (a) At this instant, what is the speed of the center of mass of the disk? m/s Vcm (b) At this instant, how much rotational kinetic energy does the disk have relative to its center of mass? Krot = J

A string is wrapped around a disk of mass m = 2.4 kg and radius R = 0.12 m. Starting from rest, you pull the string with a constant force F = 6 N along a nearly frictionless surface. At the instant when the center of the disk has moved a distance x = 0.16 m, your hand has moved a distance of d = 0.32 m. m = F d (a) At this instant, what is the speed of the center of mass of the disk? m/s Vcm (b) At this instant, how much rotational kinetic energy does the disk have relative to its center of mass? Krot = J

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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