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July 29, 2014

Homework Help: Physics

Posted by Rhi on Saturday, June 2, 2012 at 9:45am.

A uniform spherical shell of mass M = 19.7 kg and radius R = 1.62 m rotates about a vertical axis on frictionless bearings. A massless cord passes around the equator of the shell, over a pulley of rotational inertia I = 1.02 kg m2 and radius r = 0.63 m, and is attached to a small object of mass m = 6.6 kg. There is no friction on the pulley's axle; the cord does not slip on the pulley. What is the speed of the object after it falls a distance h = 4.63 m from rest? Use energy considerations.

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