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47. A ring, a solid sphere and a thin disc of different masses rotate with the same kinetic energy. Equal torques are applied to stop them. Which will make the least number of rotations before coming to rest

(a)  Disc

(b)  Ring

(c) Solid sphere

(d) All will make same number of rotations

Ans. d

(15)

5/5 - (1 vote)

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