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A circular platform is mounted on a frictionlessvertical axle. Its radius R 2 m and its moment ofinertia about the axle is 200 kg m2. It is initially atrest. A 50 kg man stands on the edge of theplatform and begins to walk along the edge at thespeed of 1 ms-1 relative to the ground. Time takenby the man to complete one revolution is[AIPMT (Mains)-2012]3π(1) t S(2) S2(3) 2Tt S(4) SA 2 |
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Answer» according to law of conservation of momentum |
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