If a sphere is rolling, the ratio of its rotational energy to the t...

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If a sphere is rolling, the ratio of its rotational energy to the total kinetic energy
\( \mathrm{P} \) is given by

W
(1) \( 7: 10 \)
(2) \( 2: 5 \)
(3) \( 10: 5 \)
(4) \( 2: 7 \)
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