A stationary wave is produced on a stretched string. The diagram shows the string at one moment when its displacement is greatest. The wave has a frequency of $250\,\text{Hz}$. Point P on the string has a vertical displacement of $-1.0\,\text{mm}$. What will be the vertical displacement of point P after $5.0\,\text{ms}$?
- A$-1.0\,\text{mm}$
- Bzero
- C$+0.5\,\text{mm}$
- D$+1.0\,\text{mm}$