On a horizontal rough surface

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

Problem

On a horizontal rough surface, a minimum horizontal force of

20\,\text{N}

is required to just move a

5\,\text{kg}

block. Take

g = 10\,\text{m\,s}^{-2}

. Calculate the coefficient of static friction

\mu_s

. (a)

0.41

(b)

0.20

(c)

0.40

(d)

0.50