Compressing the GroundArunning track at Harvard University
Chapter 8, Problem 88(choose chapter or problem)
Compressing the GroundArunning track at Harvard University uses a surface with a force constant of . This surface is compressed slightly every time a runners foot lands on it. The force exerted by the foot, according to the Saucony shoe company, has a magnitude of 2700 N for a typical runner. Treating the tracks surface as an ideal spring, nd (a)the amount of compression caused by a foot hitting the track and (b)the energy stored briey in the track every time a foot lands.
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