The moment of inertia of a body about a ...

The moment of inertia of a body about a given axis is `1.2 kg m^(2)`. Initially, the body is at rest. In order to produce a rotational `KE` of `1500 j`, for how much duration, an acceleration of `25 rad s^(-2)` must be applied about that axis ?

4 s

2 s

8 s

10 s

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