A 62.0-kg woman stands at the western rim of a horizontal turntable having a moment of inertia of 450 kg • m? and a radius of 2.00 m. The turntable is initially at rest and is free to rotate about a frictionless, vertical axle through its center. The woman then starts walking around the rim clockwise (as viewed from above the system) at a constant speed of 1.50 m/s relative to the Earth. Consider the woman-turntable system as motion begins. (a) Is the mechanical energy of the system constant? O Yes O No (b) Is the momentum of the system constant? O Yes O No (c) Is the angular momentum of the system constant? O Yes O No (d) In what direction and with what angular speed does the turntable rotate? magnitude rad/s direction -Select-- (e) How much chemical energy does the woman's body convert into mechanical energy of the woman-turntable system as the woman sets herself and the turntable into motion?

A 62.0-kg woman stands at the western rim of a horizontal turntable having a moment of inertia of 450 kg • m? and a radius of 2.00 m. The turntable is initially at rest and is free to rotate about a frictionless, vertical axle through its center. The woman then starts walking around the rim clockwise (as viewed from above the system) at a constant speed of 1.50 m/s relative to the Earth. Consider the woman-turntable system as motion begins. (a) Is the mechanical energy of the system constant? O Yes O No (b) Is the momentum of the system constant? O Yes O No (c) Is the angular momentum of the system constant? O Yes O No (d) In what direction and with what angular speed does the turntable rotate? magnitude rad/s direction -Select-- (e) How much chemical energy does the woman's body convert into mechanical energy of the woman-turntable system as the woman sets herself and the turntable into motion?

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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