physics
posted by Sam .
A 3.35 kg ball moving at 4.20 m/s to the right hits a 2.45 kg ball headon that is traveling at 3.50 m/s to the left. The second ball ends up going to the right with a velocity of 5.50 m/s. What is the velocity of the first ball after the collision?

Momentum:
momentum before=momentum after
3.35*4.2+2.45(3.50)=2.45(5.5)+3.35V solve for V
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