A person stands, hands at his side, on a platform that is rotating at a 0.9 rev/s. If he raises his arms to a horizontal position, the speed decreases to 0.70 rev/s. Why? By what factor has his moment of inertia changed?

A person stands, hands at his side, on a platform that is rotating at a 0.9 rev/s. If he raises his arms to a horizontal position, the speed decreases to 0.70 rev/s. Why? By what factor has his moment of inertia changed?

Name: A person stands, hands at his side, on a platform that is rotating at
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Description: A person stands, hands at his side, on a platform that is rotating at a 0.9 rev/s. If he raises his arms to a horizontal position, the speed decreases to 0.70 rev/s.Why?By what factor has his moment of inertia changed?

Glencoe Physics: Principles and Problems, Student Edition

1st Edition

ISBN:9780078807213

Author:Paul W. Zitzewitz

Publisher:Paul W. Zitzewitz

Chapter8: Rotational Motion

Section8.2: Rotational Dynamics

Problem 29PP

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