Physics - Kinematics Question with Solution | TestHub

In the shown diagram A is of mass 50 kg, B is of mass 5 kg. Coefficient of friction between A and ground is 0.2 and friction is absent between B and ground. A horizontal force F is applied on B. ${\mathrm{f}}_1$ is friction force between A and ground, ${\mathrm{a}}_1$ is acceleration of A, a is acceleration of B.