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The moment of inertia of a rigid body is...

The moment of inertia of a rigid body is `1.5 kgxxm//s^(2)` and its initial angular velocity is zero. It start rotating with uniform angular acceleration `alpha=20rad//sec^(2))` to achieve a rotational `KE=1200J` find the time requried for this:

A

20 sec

B

200 sec

C

2 sec

D

0.2 sec

Text Solution

Verified by Experts

The correct Answer is:
C
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