Auniform electric field of magnitude 604 n/c exists between two parallel plates that are 4.24 cm apart. a proton is released from rest at the positive plate at the same instant an electron is released from rest at the negative plate.

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.