A baseball with a mass of a 150 grams. Runs into a door at the edge traveling
at 56.25 mi/hr. It then bounces back with 31.5 mi/hr back the opposite
direction. The door has a mass of 45 kg, has a width of 92 cm and can be
treated as a rod about the end axis. Use conservation of angular momentum to
find the angular velocity of the door after it was hit assuming it started from
rest.