7) A system of two blocks A and B are connected by an inextensible mass less string as shown. Pulley is mass less and frictionless. A bullet of mass m0 with velocity V0 and gets embedded. Find the impulse imparted by tension force?
8) After perfectly inelastic collision between 2 identical particles moving with same speed in different direction, the speed of particles between ¾ th of initial speed. Find the angle between the two before collision.