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Define simple harmonic motion and explain it. |
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Answer» Solution :Simple Harmonic Motion : The periodic motion about a fixed point on a linear path under the influence of the force acting towards the fixed point and PROPORTIONAL to displacement of the BODY from a fixed point is called a Simple Harmonic Motion. Or ..Simple harmonic motion is not any periodic motion but one in which displacement is a sinusoidal function of time... In a oscillatory motion restoring force is EXERTED towards mean position from any point hence in simple harmonic motion displacement of particle from the ORIGIN varies with time as `therefore x(t) = A cos (omega t+ phi)` where `A, omega" and "phi` are constants  In figure a particle oscillating back and forth about the origin of an X-axis between the limits +A and -A is SHOWN. |
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