(a) Calculate the impulse experienced when a 65-kg person lands on firm ground after jumping from a.

(a) Calculate the impulse experienced when
a 65-kg person lands on firm ground after jumping from a height of 3.0 m. (ib)
Estimate the average force exerted on the person’s feet by the ground if the
landing is stiff legged, and again (c) with bent legs. With stiff legs, assume
the body moves 1.0 cm during impact, and when the legs are bent, about 50 cm.
[Hint: The average net force on her which is related to impulse, is the vector
sum of gravity and the force exerted by the ground.]