A cylinder of mass \( 10 \mathrm{~kg} \) and radius of \( 15 \mathr...

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A cylinder of mass \( 10 \mathrm{~kg} \) and radius of \( 15 \mathrm{~cm} \) is rolling perfectly on a plane of inclination \( 30^{\circ} \). The
\( \mathrm{P} \) coefficient of static friction \( \mu_{\mathrm{s}}=0.25 \). How much is

W the force of friction acting on the cylinder?
(1) \( 16.3 \mathrm{~N} \)
(2) \( 15.5 \mathrm{~N} \)
(3) \( 19.1 \mathrm{~N} \)
(4) \( 20.0 \mathrm{~N} \)
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