Drawn out on a graph, the up-and-down motion of the ball over time ... force is a somewhat complex trigonometric function. Nevertheless, pendulums closely approximate simple harmonic motion ...

Regular OSCILLATION, for instance, by a particle in a solid, fluid or gas, displaced from its normal position or random motion, when the force required is proportional ... Similarly, simple harmonic ...

Regular OSCILLATION, for instance, by a particle in a solid, fluid or gas, displaced from its normal position or random motion, when the force required is proportional ... Similarly, simple harmonic ...