Success in Athletics and how to obtain it

THE STANDING JUMPS 69 difference between " effort and force," as the following example will prove. Since they both weigh the same-viz. 140 pounds– the " work" is the same in attaining 5 feet. Formula z'n th~·s case: . . mu 2 Kmet1c energy = 2 g 140 :X 18 2 - 64 = 709 foot-pounds.