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A uniform horizontal circular platform o...

A uniform horizontal circular platform of mass `200 kg` is rotating at 10 rpm about a vertical axis passing through its center. A boy of mass `50 kg` is standing at its edge. If the boy moves to the center of the platform, the frequency of rotation would become

A

12.5 rpm

B

7.5 rpm

C

20 rpm

D

15 rpm

Text Solution

Verified by Experts

The correct Answer is:
D
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