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July 4, 2015

Homework Help: Physics

Posted by Tarren on Thursday, December 2, 2010 at 1:17pm.

A skater spinning with angular speed of 1.5 rad/s draws in her outstretched arms thereby reducing her moment of inertia by a factor a 3.
a) Find her angular speed.
b)What is the ratio of her final angular momentum to her initial angular momentum?
c)Did her mechanical energy change? (Yes but why?)

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