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A disc of mass m and radius r is free to...

A disc of mass m and radius r is free to rotate about its centre as shown in the figure. A string is wrapped over its rim and a block of mass m is attached to the free end of the string. The system is released from rest. The speed of the block as it descends through a height h, is :-

A

576 J

B

584 J

C

623 J

D

None

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Verified by Experts

The correct Answer is:
A
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