A particle executes simple harmonic motion. If you are told that its velocity at this instant is zero, can you say what is its displacement? If you are told that its velocity at this instant is maximum, can you say what is its displacement?

Question

A particle executes simple harmonic motion. If you are told that its velocity at this instant is zero, can you say what is its displacement? If you are told that its velocity at this instant is maximum, can you say what is its displacement?

Philoid · Accepted Answer

If we want to determine the displacement of a particle, then its mean position should be known to us. Since, it is not mentioned in the question, the displacement cannot be determined.