The coefficient of static friction between a wooden block and an inclined wooden plank is
PHYSICS · Single correct · CBSE · Physics · Laws of Motion · Laws of Motion
Problem
The coefficient of static friction between a wooden block and an inclined wooden plank is 0.40. Calculate the minimum angle (to the horizontal) at which the block will just start sliding down the plank.
(a) 26.6∘
(b) 21.8∘
(c) 38.7∘
(d) 23.8∘