A disc of radius R = 2 m has a moment of inertia | = 250 kg.m2 and is rotating at 10 rev/min about a frictionless vertical axle. Facing the axle, a 50 kg child hops (jää) onto the disc and manages to sit down on the disk at a distance of 1 m from the axis of rotation. The new angular speed of the disc (in rev/min) is: A. 2.3 В. 5.1 C. 9.1 D. 12.6 E. 8.3
A disc of radius R = 2 m has a moment of inertia | = 250 kg.m2 and is rotating at 10 rev/min about a frictionless vertical axle. Facing the axle, a 50 kg child hops (jää) onto the disc and manages to sit down on the disk at a distance of 1 m from the axis of rotation. The new angular speed of the disc (in rev/min) is: A. 2.3 В. 5.1 C. 9.1 D. 12.6 E. 8.3
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 46P: A playground merry-go-round of radius R = 2.00 m has a moment of inertia I = 250 kg m2 and is...
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