Question

A block of mass 0.1$kg$ is held against a wall by applying a horizontal force of 5$N$ on co-efficient of friction between the block and the wall is $0.5,$ the magnitude of friction. The block is $(g=9.8m/s^2)$

• A. 2.5 N
• B. 0.98 N
• C. 4.9 N
• D. 0.49 N

Answer 1

The correct option is B 0.98 N

$\begin{array}{c}\because f_{s}max>mg\\ \therefore f=mg=0.98N\end{array}$

$\therefore$ Option $B$ is correct .