Two ice skaters stand face to face and "push off" and travel directly away from each other. The boy has a velocity of 5 m/s and he weighs 750 N. The girl weighs 480 N. What is the girl's velocity?

Answer 1

conserve momentum:
750*5 = 480v
Now just find v

Yeah, yeah, the formula is p=mv, but the same factor of g is on both sides of the equation, so it cancels out.