3. If two people attempt the same maneuver, what determines the amount of force that each is
required to exert?

1) You need to change either the turn of the jump, or push off higher or lower from the wall.
2) This ensures the speed they gain during the race.
3) This is determined by the physical characteristics of each individual person. Since each person is individual and, accordingly, each needs a different amount of strength.
4) Earth's gravity..