Posted by **John** on Saturday, March 19, 2011 at 4:34pm.

A figure skater spins on the ice, holding two weights a distance d from the axis about which he is rotating. At a certain time, he pulls these weights toward his body as shown, causing his rotational inertia to decrease by a factor of 2. How does this affect the maximum angular velocity with which any part of his body moves?

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