Could the jumper be related to Newton's three laws?
Holding the body and it in one leap, you draw an independent body diagram showing the arm pointing the body, backwards, gravity downwards and the body pointing upwards (jumper area).
The first law states that the body remains at rest or in motion unless an external or internal force acts on the body.
Here, the person keeps jumping until he slows down and stops jumping.
Silk law F = mother, the boy went straight down, then jumped.
The third law states: Every action is equal to the reaction and the opposite direction. 2 is equal to p is equal to c.
There are two erzas, the erza person down and the resistance that takes the jump up, both equal, the distance that the extra jump jumps up.