Two people are paddling upstream in a canoe, one person uses a force of 100 n and the other exerts 150 n and the other exerts 150 n and the other exerts 150 n in the same direction. the river is creating a drag force of 25 n on the canoe. what is the net force?

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.