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

Reduced by 10

Explanation:

It was said that the time was ten times more. For it to remain the same, the force must be ten times less. Because (1/10) x 10 = 1.

the motion of a pendulum is a classic example of mechanical energy conservation. a pendulum consists of a mass (known as a bob ) attached by a string to a pivot point. as the pendulum moves it sweeps out a circular arc, moving back and forth in a periodic fashion.