A man standing 300m away from the wall sounds a whistle. The echo from the wall reaches him 1.8sec. later, calculate the velocity of sound in air
- 540.0ms-1
-
333.3ms-1
- 270.0ms-1
- 166.7ms-1
- 83.3ms-1
The correct answer is: B
Explanation
V = \(\frac{2x}{t} = \frac{2 \times 300}{1.8}\)= 333.33ms-1