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When 'W' joule of work is done on a flyw...

When 'W' joule of work is done on a flywheel, its frequency of rotation increases from `n_(1)`. Hz to `n_(2)`. Hz The M.I. of the flywheel about its axis of rotation is given by

A

`(W)/(2pi^(2) (v_(2)^(2)-v_(1)^(2))`

B

`(W)/(2pi^(2)(v_(2)^(2)+v_(1)^(2))`

C

`(W)/(4pi^(2) (v_(2)^(2)-v_(1)^(2))`

D

`(W)/(4pi^(2) (v_(2)^(2)+v_(1)^(2)`

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The correct Answer is:
A
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