Physics - NLM Question with Solution | TestHub

Figure shows three blocks on a rough surface under influence of a force P of same magnitude in all the three cases. Coefficient of friction is same between each block and ground. What possible relation holds between magnitudes of normal reaction and friction forces. (Assume that blocks do not overturn about edge.) Here, ${\mathrm{f}}_{\mathrm{A}},{\mathrm{f}}_{\mathrm{B}}\&{\mathrm{f}}_{\mathrm{C}}$ are frictional forces & ${\mathrm{N}}_{\mathrm{A}},{\mathrm{N}}_{\mathrm{B}}\&\mathrm{N}$ are reactions.