Why does a person bend their knees at the moment of landing after a jump?

The reason for the bending of the legs when jumping is the phenomenon of inertia.

Inertia is the phenomenon of the body preserving its state.

When jumping, a person moves down at a certain speed. When the feet touch the surface of the earth, the human body continues to move downward by inertia. The human body by inertia acts on the legs with a certain force. The legs of a person under the influence of this force bend at the knees.

One of the components of a person's success in our time is receiving modern high-quality education, mastering the knowledge, skills and abilities necessary for life in society. A person today needs to study almost all his life, mastering everything new and new, acquiring the necessary professional qualities.