A man with a mass of 80 kg sits on a large seesaw 9 m from the center. Two children each with a mas of 30 kg are seated on the other side of the seesaw. One child seats 5 m from the center. How far from the center should the other child seat to balance the seesaw?
let second child seat at a distance r from the center. let assume center of mass is at origin X ( c... View the full answer