Simple Harmonic Motion.

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Simple harmonic motion is typified by the motion of a mass on a spring when it is subject to the linear elastic restoring force given by Hooke's Law. The motion is sinusoidal in time and demonstrates a single resonant frequency.

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Simple Harmonic Motion Equations

The motion equation for simple harmonic motion contains a complete description of the motion, and other parameters of the motion can be calculated from it.

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The velocity and acceleration are given by

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The total energy for an undamped oscillator is the sum of its kinetic energy and potential energy which is constant at

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Or, the way I remember...

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