A block of mass m collides elastically with a block of mass M. Before the collision, m is moving with velocity vx = V and M is moving at vx = -3.0V. Afterwards, M is moving at vx = 3.3V.
(a) What is the velocity (in terms of V) of m after the collision?
(b) What is M in terms of m?
(c) What % of the kinetic energy was transferred to thermal energy?