When the rope it at an angle of 30 degrees the 2 lb sphere A has an initial speed of 2 ft/s. The coefficient of restitution between A and the 4 lb wedge B is 0.8 and the length of the rope l=3ft. The spring constant has a value of 100 lb/ft and an angle of 20 degrees. Determine the velocity of A and B immediately after the impact.