A 0.750 kg billiard ball, is thrown at a 0.050 kg golf ball. The Billiard ball is moving at 22 m/s to the right. After the billiard ball hits the golf

ball, the golf ball moves moves at 54.38 m/s to the right.

a)With what velocity was the golf ball initially moving?

b)With what velocity was the billiard ball moving after the collision?