# Pure Rotational Motion!

The moment of inertia of a body about a given axis is $$1.2kg~m^{2}$$ . Initially the body is at rest. In order to produce a Rotational Kinetic Energy of $$1500J$$ an angular acceleration of $$25rad~s^{-2}$$ must be applied about the axis of rotation for a duration of how many seconds ?????

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