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A uniform disc of mass 'm' and radius R ...

A uniform disc of mass `'m'` and radius `R` is placed on a smooth horizontal floor such that the plane surface of the disc in contact with the floor . A man of mass `m//2` stands on the disc at its periphery . The man starts walking along the periphery of the disc. The size of the man is negligible as compared to the size of the disc. Then the center of disc.

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