When a sphere of moment of inertia I rolls down on an inclined plan...

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When a sphere of moment of inertia I rolls down on an inclined plane the percentage of
\( \mathrm{P} \) total energy which is rotational, is

W approximately
(1) \( 28 \% \)
(2) \( 72 \% \)
(3) \( 100 \% \)
(4) None of these
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