A ten grams ball glides to the left at a speed of 0.4 meters per
second on a frictionless flat surface at the OC fair skating rink.
The ball collides head-on, elastically, with another larger ball
with mass 30 grams which was gliding to the right with a speed of
0.2 meters per second.
A. After the collision, what is the final velocity of each
ball.
B. What is the change in momentum for each ball? How do they
compare...