The man of mass m1 and the woman of mass m2 are standing on opposite ends of the platfor...

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.