Two children carry a lightweight 2.4-m-long horizontal pole with a water bucket hanging from it. Part A The older child supports twice as much weight as the younger child. How far is the bucket from the older child

The man of mass m1 and the woman of mass m2 are standing on opposite ends of the platform of mass m0 which moves with negligible friction and is initially at rest with s = 0. the man and woman begin to approach each other. derive an expression for the displacement s of the platform when the two meet in terms of the displacement x1 of the man relative to the platform.