Physics - NLM Question with Solution | TestHub

The velocity of centre of mass of system (A + B) is $\frac{\mathrm{V}}{3}$ and will remain constant.

The magnitude of total work done by friction is $\frac{2}{3}$ times the initial K.E. of B till both the blocks reach final common velocity.

Before the blocks reach a common velocity, the acceleration of A relative to B is $\frac{2}{3}\mu \mathrm{g}$.

Before the blocks reach a common velocity, the acceleration of A relative to B is $\frac{3}{2}\mu \mathrm{g}$.