A small block of mass \(m\) is kept at the left end of a larger block of mass \(M\) and length \(l\) . The system is started towards right with an initial velocity \(v\) . The friction coefficient between the road and the bigger block is \(k\) and that between the blocks is \(k/2\) . Find the time elapsed before the smaller block separates from the bigger block?
I am having hard time solving this , can somebody please help ,if possible with an FBD.