Physics, asked by jayshreegahalod1999, 5 months ago

A ballet dancer spins about a vertical axis at 90 rpm with arms outstretched. With the arms folded. the moment of inertia about the same axis of rotation changes to 75%. Calculate the new speed of rotation. <br /><br />
(Ans: 120 rpm)​

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Answered by utsavmahi2006
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