Springs/Shockers are attached to the wheel of the cars to ensure a safe ride to the passengers. The back and forth, repetitive movements of the swing against the restoring force is the simple harmonic motion. The object oscillates around the equilibrium position, and the net force on the object is equal to the force provided by the spring. In simple harmonic motion, the acceleration of the system, and therefore the net force, is proportional to the displacement and acts in the opposite direction of the displacement. Swings in the parks are also the example of simple harmonic motion. In simple harmonic motion, the acceleration of the system, and therefore the net force, is proportional to the displacement and acts in the opposite direction of the displacement.Ī good example of SHM is an object with mass m attached to a spring on a frictionless surface, as shown in Figure.