>> |
Anonymous
Let's see, at the top the person has Potential Energy. After the fall, right when the person lands, that Potential Energy becomes Kinetic Energy. But, since he rolled, he also made Rotational Kinetic Energy. Maybe that Rotational Kinetic Energy distributes the Normal Force from the surface to different directions such that it causes at little harm as possible, by not being perpendicular with the surface the moment of landing.
|