a) Determine the momentum of each of the following: 60kg halfback (rugby player) moving eastward at 9m/s 1000kg car moving northward at 20m/s 40kg student moving southward at 2m/s b) An elastic collision occurs in one dimension, in which a 10kg block traveling at 5m/s collides with a 5kg block traveling at 3m/s in the same direction. What are the velocities of the two blocks immediately after the collision? c) An inelastic collision occurs in one dimension, in which a 10kg block traveling at 5m/s collides with a 5kg block traveling at 3m/s in the same direction, and they stick together. What are the velocities of the blocks immediately after the collision