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Dete, Page, OSCILLATIONS, O Peniodic Motion., Any motion ushich repeat itself after a, of time is called Pesiadic Motion., eqular intenval, Ex:-The motion of any Planet around Hhe sun in, elliptical, of mercury 81.97 days, The time period of, farth is, around the Earth s, 27.3 days., oxpit , for example - The time paiod, 365.1 days→, The mation of moon, Periodic ts time period, es, Oa osálatory mation, Osculatory mation or, body moves back and fourth about its mean, it's, harmonic Motion, position,, motton is called oscillatoryy motion., fox Example OMotion of a Simple Pendulum, The oscillation of mass suspended fuem the, Apring, Simple Haimonic Motion, The oscillatory metion is caled, simple Haymonic Motion., The Equation for simple, f(t) =, Harmonic Motion is, a, sin wt + bi cos wt, W= 27, %3D, f(t) = a,, sin, t+ bi cos, %3D