Student X uses a starting pistol, causing both smoke and sound. Student Y is positioned $100\,\text{m}$ away and observes the smoke as soon as it appears. The speed of sound in air is $340\,\text{m s}^{-1}$. What is the time delay between student Y seeing the smoke and hearing the sound?
- A$0.29\,\text{s}$
- B$0.59\,\text{s}$
- C$1.7\,\text{s}$
- D$3.4\,\text{s}$