A force platform is a tool used to analyze the performance of athletes measuring the vertical force that the athlete exerts on the ground as a function of time. Starting from rest, a 56.0-kg athlete jumps down onto the platform from a height of 0.610 m. While she is in contact with the platform during the time interval 0 < t < 0.800 as, the force she exerts on it is described by the function(a) What impulse did the athlete receive from the platform?
N · s up
(b) With what speed did she reach the platform? m/s(c) With what speed did she leave it?
(d) To what height did she jump upon leaving the platform?