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Physics · LAWS OF MOTION
हिन्दीA mass rests on a horizontal plane. The plane is gradually inclined until at an angle \( \theta = 15^\circ \) with the horizontal, the mass just begins to slide. What is the coefficient of static friction between the block and the surface?
Correct answer · Option 2
\( 0.27 \)
Explanation
At the angle of repose, \( \mu_s = \tan \theta_{\text{max}} = \tan 15^\circ \approx 0.27 \).
