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JEE PHYSICS MCQ: SYSTEM OF PARTICLES

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A flywheel of mass 2 kg2 \mathrm{~kg} has radius of gyration 0.5 m0.5 \mathrm{~m}. If it makes 10 r.p.s. then its rotational kinetic energy will be
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Correct option: C
100π2 J100 \pi^2 \mathrm{~J}
Option C (100π2 J100 \pi^2 \mathrm{~J}) is correct because it is the rotational kinetic energy calculated using the moment of inertia and angular velocity.

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