A solid sphere of mass \( M \) and radius \( \mathrm{R} \) rolls P ...

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A solid sphere of mass \( M \) and radius \( \mathrm{R} \) rolls
P on a horizontal surface without slipping. The ratio of rotational K.E. to total K.E. is:-
W
(1) \( \frac{1}{2} \)
(2) \( \frac{3}{7} \)
(3) \( \frac{2}{7} \)
(4) \( \frac{2}{10} \)
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