A horizontal platform in the shape of a circular disk rotates on a frictionless bearing about a vertical axle through the center of the disk. The platform has a radius of 2.88 m and a rotational inertia of 219 kg-m? about the axis of rotation. A 64.5 kg student walks slowly from the rim of the platform toward the center. If the angular speed of the system is 2.33 rad/s when the student starts at the rim, what is the angular speed when she is 0.904 m from the center?

A horizontal platform in the shape of a circular disk rotates on a frictionless bearing about a vertical axle through the center of the disk. The platform has a radius of 2.88 m and a rotational inertia of 219 kg-m? about the axis of rotation. A 64.5 kg student walks slowly from the rim of the platform toward the center. If the angular speed of the system is 2.33 rad/s when the student starts at the rim, what is the angular speed when she is 0.904 m from the center?

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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