Three objects, A : (a solid sphere), B : (a thin circular disk) and C : (a circular ring), each have the same mass M and radius R. They all spin with the same angular speed $\omega$ about their own symmetry axes. The amounts of work (W) required to bring them to rest, would satisfy the relation

Question

Dr. Abubacker · Accepted Answer

[Solution] W = $\frac{1}{2}I\omega^2$ with $I_C = MR^2 > I_B = \frac{1}{2}MR^2 > I_A = \frac{2}{5}MR^2$. Answer (3).

Q. Three objects, A : (a solid sphere), B : (a thin circular disk) and C : (a circular ring), each have the same mass M and radius R. They all spin with the same angular speed $\omega$ about their own symmetry axes. The amounts of work (W) required to bring them to rest, would satisfy the relation

Explanation

Reviewed by Dr. Abubacker

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