A block just begins to slide down a rough inclined plane when the angle of…

PHYSICS · Single correct · CBSE · Physics · Laws of Motion · Laws of Motion

Problem

A block just begins to slide down a rough inclined plane when the angle of inclination reaches

\theta_{\max}

. Which relation correctly gives the coefficient of static friction

\mu_s

in terms of

\theta_{\max}

? (a)

\mu_s = \sin \theta_{\max}

(b)

\mu_s = \cot \theta_{\max}

(c)

\mu_s = \tan \theta_{\max}

(d)

\mu_s = \cos \theta_{\max}