Question

A person fires a gun in front of a building 167 m away. If the speed of sound is 334 ms⁻¹, calculate the time in which he hears an echo.

Answer 1

Distance between building and person (d) = 167 m

Speed of sound (v) = 334 ms⁻¹

\[ \text{Time } (\mathrm{t}) = \frac{2d}{v} \]

\[ = \frac{2 \times 167}{334} \]

= 1.0 s