A 2-lb sphere A is moving to the left with a velocity of 40 ft/swhen it strikes the inclined surface of a 5-lb block B which is atrest. The block is supported by rollers and is attached to a springof constant k=12 lb/in. Knowing that the coefficient of restitution between the sphere and the block is e=.7, and neglecting friction,determine the maximum deflection of the spring.