A cockroach of mass m lies on the rim of a uniform disk of mass 4m that can rotate freely about its center like a merry-go- round. Initially the cockroach and disk rotate together with an angular velocity of wo. Then the cockroach walks haifway to the center of the disk. (a) What then is the angular velocity of the cockroach-disk system? (b) What is the ratio K/Ko of the new kinetic energy of the system to its initial kinetic energy? State your answer in terms of the given variables. (a) ? Edit (b) Edit

A cockroach of mass m lies on the rim of a uniform disk of mass 4m that can rotate freely about its center like a merry-go- round. Initially the cockroach and disk rotate together with an angular velocity of wo. Then the cockroach walks haifway to the center of the disk. (a) What then is the angular velocity of the cockroach-disk system? (b) What is the ratio K/Ko of the new kinetic energy of the system to its initial kinetic energy? State your answer in terms of the given variables. (a) ? Edit (b) Edit

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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