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A body of moment of inertia about its ax...

A body of moment of inertia about its axis of rotation is `3 kg m^(2)` and angular velocity 3 rad/s. The kinetic energy of rotating body is same as that of body of mass 27 kg moving with a speed of

A

`"1.0 ms"^(-1)`

B

`"0.5 ms"^(-1)`

C

`"1.5 ms"^(-1)`

D

`"2.0 ms"^(-1)`

Text Solution

Verified by Experts

The correct Answer is:
A
`(1)/(2)Iomega^(2)=(1)/(2)mv^(2)`
`therefore 3xx9=27xxv^(2)" "therefore v=1m//s`
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