Answer:
(a)
(b)
Explanation:
(a) According to the law of conservation of energy, the potential energy of the person at 0.40 m is equal to its kinetic energy before the colision with the floor:
This is the initial velocity in the negative y-direction. Impulse is given by:
(b) The average force is:
I have no idea what that is, but all of your answers right
897+103=1000
2x106=212
6.92x104=719.68
1.34x102=136.68
109x1=109