A Boy and a Girl Are Balanced on a Massless

Multiple Choice

A boy and a girl are balanced on a massless seesaw. The boy has a mass of 60 kg and the girl's mass is 50 kg. If the boy sits 1.5 m from the pivot point on one side of the seesaw, where must the girl sit on the other side for equilibrium?

A) 3.0 m
B) 1.8 m
C) 1.2 m
D) 1.3 m
E) 2.5 m