A force platform is a flat, rectangular, force-sensitive device that electronically records forces exerted against its upper surface. This device can be used to measure the impulsive forces involved during walking, running, jumping, and other activities. Two high jumpers have the following force plate read-outs (the force plate is zeroed out on each individual's weight). The first jumper is 50 kg and the second is 75 kg. What are the exit velocities for each jumper? Which jumper jumped higher? The takeoff loading can be approximated by a step function and a triangle, respectively, for the two jumpers indicating different jumping styles.

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Jumper 1 Frakeoff = 1000 N Takeoff 60 msec Jumper 2 Ftakeoff = 1300 N Takeoff 100 msec Jumper 1 Frakeoff = 1000 N Takeoff 60 msec Jumper 2 Ftakeoff = 1300 N Takeoff 100 msec