The velocity of a particle (v) moving with simple harmonic motion, at any instant is given by (where, r = Amplitude of motion and y = Displacement of the particle from mean position.)?

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  1. $$\omega \sqrt {{{\text{y}}^2} - {{\text{r}}^2}} $$
  2. $$\omega \sqrt {{{\text{r}}^2} - {{\text{y}}^2}} $$
  3. $${\omega ^2}\sqrt {{{\text{y}}^2} - {{\text{r}}^2}} $$
  4. $${\omega ^2}\sqrt {{{\text{r}}^2} - {{\text{y}}^2}} $$

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