BCS Written Physics Practice Questions - BCS Written Post-Related Physics, Subject Code 511, Total Marks 200 Exam

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A uniform disc of mass 4.0 kg and radius 0.20 m rotates at 10 rad/s about its central axis perpendicular to its plane. Taking I = (1/2)MR², what is its rotational kinetic energy?

4.0 J 2.0 J 8.0 J 40 J

Correct Answer:

4.0 J

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