Newton’s Third Law of Motion

Whenever one body exerts a force on a second body, the first body experiences a force that is equal in magnitude and opposite in direction to the force that it exerts.

The red sports car is crashing at high speed into the brick wall. The forces acting on the car and the wall at the point of the crash are indicated by blue arrows coming out of the wall and out of the car, having the same length.

Figure 1: A car hitting the wall, exerts a force on the wall equal in magnitude and opposite in direction.

Referred from:

Article

Newton's Laws of Motion