Question

A child watching Dussehra celebrations from a distance sees the effigy of Ravana burst into flames and hears the explosion associated with it 2s after that. How far was he from the effigy if the speed of sound in the air that night was 335 m/s?

Answer 1

Step 1- Given data

Speed of sound in air, $v=335m/s$

Time taken to travel the sound,$t=2s$

Step 2- To find the distance between the child and the effigy

The formula for distance, $d=v\times t$

So the distance,

$$\begin{gathered} d=335\times 2 \\ d=670m. \end{gathered}$$

Thus, the distance between the child and the effigy is $670m.$