Physics - NLM Question with Solution | TestHub

Given in the figure are two blocks$A$and$B$of weight$20 \mathrm{N}$and$100 \mathrm{N}$, respectively. These are being pressed against a wall by a force$F$and kept in equilibrium as shown. If the coefficient of friction between the blocks is$0.1$and between block$B$and the wall is$0.15$, the frictional force applied by the wall on block$B$is: