Two ice-skaters stand together as illustrated in ? Fig. 3.28. They “push off” and travel...

Two ice-skaters stand together as illustrated in ? Fig. 3.28. They “push off” and travel directly away from each other, the boy with a velocity of 0.50 m/s to the left. If the boy weighs 735 N and the girl weighs 490 N, what is the girl’s velocity after they push off? (Consider the ice to be frictionless.)