Question

A horizontal force of 20 N is necessary to just hold
a block stationary against a wall. The coefficient of
friction between the block and wall is 0.3. The
weight of the block is​

Answer 1

Answer:

Normal reaction $N=10 N$

Maximum friction $=\mu N$

$\qquad=0.2 \times 10=2N$

for equilibrium

f=weight

weight =2N