Direction: Choose the best possible answer and explain it.

1. A 0.27 kg volleyball and a 0.19 kg softball are launched towards each other at a velocity of 50 m/s.
a. Calculate the total momentum of the system before the collision.
b. Compare the total momentum before and after the collision.

2. A moped weighing 80 kg is driving with a velocity of 45 m/s and then bumped at a parked small car that weighs 1200 kg.
a. Calculate the total momentum of the system before the collision.
b. Compare the total momentum before and after the collision. ​