NEET 2018 Physics Moment of Inertia MCQ Question
Three objects, A : (a solid sphere) B : (a thin circular disk) C : (a circular ring)
each have the same mass M and radius R. They all spin with the same angular speed ω about their own symmetry axes. The amounts of work (W) required to bring them to rest, would satisfy the relation
WC > WB > WA
WA > WB > WC
WB > WA > WC
WA > WC > WB
Correct Answer
Detailed Explanation
The moment of inertia is highest for the ring, then the disk, and lowest for the sphere. Therefore, more work is needed to stop the ring.
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