A boy and girl are balanced on a "massless" seesaw. The boy has a mass of 75 kg and the girl a mass of 50kg. The seesaw is 6 meters in lenght with the pivot point between them...What are the distances each child must sit relative to the pivot point?

Answer 1

Girl's distance:
d2 = 6m/2=3 m from pivot point(center).

M1*d1 = M2*d2.
75*d1 = 50*3 = 150.
d1 = 2 m. = Boy's distance.