Newton’s Third Law

Newton’s Third Law, for every action there is an equal and opposite reaction, is demonstrated with the help of Hooke’s Law, where the force on a spring is equal to the spring constant multiplied by the displacement from the equilibrium point of the spring. The dynamics cart on the left has less mass and is moving at a greater velocity than the dynamics cart to the right. When the dynamics carts collide, the force exerted on each spring-and thus each dynamics cart-is equal because each spring is compressed by the same displacement.

Licensed under the MIT open source license.