A block is to be kept at rest on a rough plane inclined at to the horizontal

PHYSICS · Subjective · CBSE · Physics · Laws of Motion · Laws of Motion

Problem

4.0\,\text{kg}

block is to be kept at rest on a rough plane inclined at

20^{\circ}

to the horizontal. Determine the minimum coefficient of static friction required between the block and the plane for this to be possible. (Take

g = 9.8\,\text{m\,s}^{-2}