Question

Jogging on hard surfaces with insufficiently padded shoes produces large forces in the feet and legs. A) Calculate the force needed to stop the downward motion of a jogger’s leg, if his leg has a mass of 13.4 kg, a speed of 6.20 m/s, and stops in a distance of 1.36 cm. (Be certain to include the weight of the 66.0–kg jogger’s body.) B)What is the ratio of this force to the weight of the jogger?

Answer 1