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A boy sits near the edge of revolving ci...

A boy sits near the edge of revolving circular dise
(i) What will be the change in the motion of a disc?
(ii) If the boy starts moving from edge to the center of the disc, what will happen?

Text Solution

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As we know L=L omega`=constant if the boy sits on the edge of revolving disc, its I will be increased in turn it reduces angular velocity.
(ii) If the boy starts moving towards the center of the disc, its I will decrease in turn that increases its angular velocity.
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