A 70kg person jumping down from a 3m wall hits the ground at 7.70m/s. He hits the ground with stiff legs and stops in .024 seconds. What is the force of impact in Newtons

The force of impact in Newtons is approximately 17,500 Newtons. This can be calculated using the equation F = m*a, where F is the force of impact, m is the mass of the person (70kg), and a is the acceleration (7.70m/s/0.024s).