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A rigid body is rotating about its centre of mass fixed...

This question belongs to Engineering Physics Classical Mechanics
Classical Mechanics
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A rigid body is rotating about its centre of mass; fixed at origin with an angular velocity $$\overrightarrow \omega $$ and angular acceleration $$\overrightarrow \alpha $$. If the torque acting on it is $$\overrightarrow \tau $$ and its angular momentum is $$\overrightarrow {\bf{L}} $$, then the rate of change of its kinetic energy is

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Correct Answer: Option C
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