1. The problem statement, all variables and given/known data The Question gives some data, and a figure to find out the acceleration. In the arrangement shown (refer attachment) shown, M1=20kg, M2=30Kg, floor is smooth and friction between two blocks: μ(s) = 0.6, μ(k) = 0.4. F= 400N What are the forces acting on the two blocks? 2. Relevant equations 3. The attempt at a solution On M1, there is F acting towards right, and the friction towards the left. For M2, There is the friction acting towards right, and then the forces exerted by the pulleys. In what direction and magnitude do they act?