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A body of moment of inertia of 3kgm^(2) ...

A body of moment of inertia of `3kgm^(2)` rotating with an angular velocity or 2rad//s has the same kinetic energy as a mass of 12kg moving with a velocity of

A

8m/s

B

0.5 m/s

C

2m/s

D

1m/s

Text Solution

Verified by Experts

The correct Answer is:
D
`(1)/(2) I omega^(2) = (1)/(2) mv^(2) rArr (1)/(2) xx 3 xx 4 = (1)/(2) xx 12 xx v^(2)`
`rArr v= 1m//s`
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