The force exerted on the neck by the head is due to Newton's Third Law, which states that for every force applied by an object on a second object, a force equal in size, but opposite in direction, wil...The force exerted on the neck by the head is due to Newton's Third Law, which states that for every force applied by an object on a second object, a force equal in size, but opposite in direction, will be applied to the first object by the second object. The force on the head from the neck is a Third Law pair with the force on the neck from the head, as illustrated in the previous image.
