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JEE PHYSICS MCQ: SYSTEM OF PARTICLES

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A flywheel having moment of inertia 10 kg.m210 \mathrm{~kg} . \mathrm{m}^2 is rotating at 50 rad.s−150 \mathrm{~rad.s}^{-1}. What amount of work needs to be done in order to bring this flywheel to rest in 10 seconds?
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Correct option: B
12500 J
Option B (12500 J) is correct because it is the work done to bring the flywheel to rest.

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