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A wheel of moment of inertia I and radiu...

A wheel of moment of inertia I and radius r is free to rotate about its centre as shown in 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. Find the speed of the block as it descends through a height h.

A

`((mgh)/(I))^(1//2)`

B

`((2mgh)/(m+I))^(1//2)`

C

`((2mgh)/(m+I//r^(2)))^(1//2)`

D

`((m+I)/(2mgh))^(1//2)`

Text Solution

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The correct Answer is:
C
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