Blocks A (mass 7.00 kgkg) and B (mass 12.00 kgkg, to the right of A) move on a frictionless, horizontal surface. Initially, block B is moving to the left at 0.500 m/sm/s and block A is moving to the right at 2.00 m/sm/s. The blocks are equipped with ideal spring bumpers. The collision is headon, so all motion before and after it is along a straight line. Let +x+ be the direction of the initial motion of A. A) Find the maximum energy stored in the spring bumpers. Express your answer with the appropriate units. B) Find the velocity of block A when the energy stored in the spring bumpers is maximum. Express your answer with the appropriate units. www C) Find the velocity of block B when the energy stored in the spring bumpers is maximum. Express your answer with the appropriate units. D) Find the velocity of block A after the blocks have moved apart. Express your answer with the appropriate units. E) Find the velocity of block B after the blocks have moved apart. Express your answer with the appropriate units.