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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 4.56 m and a rotational inertia of 333 kg-m² about the axis of rotation. A 52.1 kg student walks slowly from the rim of the platform toward the center. If the angular speed of the system is 1.30 rad/s when the student starts at the rim, what is the angular speed when she is 1.95 m from the center? Number i Units

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 4.56 m and a rotational inertia of 333 kg-m² about the axis of rotation. A 52.1 kg student walks slowly from the rim of the platform toward the center. If the angular speed of the system is 1.30 rad/s when the student starts at the rim, what is the angular speed when she is 1.95 m from the center? Number i Units

College Physics
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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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 4.56 m and a rotational inertia of 333 kg-m2 about the axis of rotation. A 52.1 kg student walks slowly from the rim of the platform toward the center. If the angular speed of the system is 1.30 rad/s when the student starts at the rim, what is the angular speed when she is 1.95 m from the center? Number i Units
Transcribed Image Text: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 4.56 m and a rotational inertia of 333 kg-m2 about the axis of rotation. A 52.1 kg student walks slowly from the rim of the platform toward the center. If the angular speed of the system is 1.30 rad/s when the student starts at the rim, what is the angular speed when she is 1.95 m from the center? Number i Units
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