A block of mass M = 1.00 kg contains a coiled spring and a ball of mass m = .250 kg. The spring is released when the ball block system is at rest on the edge of a frictionless plane inclined 20 degrees from the horizontal. The ball, initially 2.00 m above the horizontal floor, strikes the floor a horizontal distance of 3.00 m from the release point.
A) How far along the inclined plane does the block move after launching the ball?
B) How much energy was stored in the spring?