A ball with a mass of 1220 kg is moving in a straight line heading due east when it collides elastically with a second ball that is at rest. After the collision the first ball deflects 27.9 degrees north of its original path and the second ball moves in a line 62.1 degrees south of east. A) what is the difference between the initial and final momentum of the system. B) What is the mass of the second ball? C) Find the final momentum of each ball.