Teebee13 Teebee13 13-02-2021 Physics contestada Please help its urgent 10 points!! When you jump off a step, you usually bend your knees as you reach the ground. By doing this, the time of impact is about 10 times longer than what it would be in a stiff-legged landing and the average force on your body is unchanged increased by 100 increased by 10 reduced by 10