A40 kg kid gets into an elevator carrying a floor scale. the kid puts his scale down and stands on it. the kid is
on the bottom floor when he presses a button to go to a different floor. the graph shows the elevators motion,
1. on the fbd provided, draw and label of all the forces acting on the kid,
fbd: kid

Could someone me find the answer to this problem.

The dot diagram represents the motion of the motorcycle as it moves from left to right

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.