# When the velocity of a body executing simple harmonic motion is zero its acceleration is not zero. Why?

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When the velocity of a body executing simple harmonic motion is zero its acceleration is not zero. Why?

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Step 1

The acceleration a of a particle executing a simple harmonic motion is expressed as,

Step 2

Here ω is the angular frequency of oscillation of the particle; x is the displacement of the particle from the mean position.

According to the above expression the acceleration of the particle undergoing a simple harmonic motion is directly proportional to its displacement x from the mean position.

Therefore under maximum displacement from the mean position, the particle will possess maximum acceleration.

Step 3

Let the maximum displacement of the particle executing S.H.M be denoted as xo.

Then a...

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