Calculate the speed of each runner from the graph in Figure 4.15. The runners in Figure 4.15 are racing. Predict which runner will get to the finish line of the race first.

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.