Q1) Two masses m = 2 kg and m = 8 kg are attached to each other by a string passing through a massless pulley of radius R = 1m. m, is also attached to vertical spring of stiffness constant k = 20 N/m and equilibrium length 3h = 6m, while m is held at a height of h = 2m initially. If the system is released from rest, a) Find the speed of the blocks right before m hits the ground. h b) Repeat the question for the case where the pulley has a mass, hence a moment of inertia I 3h m www 30 kg m. R 11 h