A pendulum motion is kin to a motion of a vibrating object. To this end, a vibrating object assumes a simple harmonic trend thanks to the restoring forces. Restoring forces’ behavior is interesting. This force varies with the position of the pendulum thereby influencing the speed of the bob as it makes an oscillation. Ideally, it impedes motion as the pendulum approaches the maximum displacement and accelerates the motion of the pendulum as “it approaches the equilibrium position” (Xue, 2007). In a pendulum, this force can be defined courtesy of the drawing below.

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