A 62.0-kg woman stands at the western rim of a horizontal turntable having a moment of inertia of 495 kg • m2 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? Yes No (b) Is the momentum of the system constant? Yes No (c) Is the angular momentum of the system constant? Yes No

A 62.0-kg woman stands at the western rim of a horizontal turntable having a moment of inertia of 495 kg • m2 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? Yes No (b) Is the momentum of the system constant? Yes No (c) Is the angular momentum of the system constant? Yes No

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter10: Rotational Motion

Section: Chapter Questions

Problem 57P

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