Question

A person hears the echo of his own sound from a distance hill after 2 seconds . How far is the person from the hill , if the speed of sound is 330 m/s?

Answer 1

the distance between the person and the hill is 330 m.

Step-by-step explanation:

Given;

speed of sound in air, v = 330m/s

time of sound travel, t = 2 s

The distance between the person and the hill is calculated as;

`Distance = Speed \ * \ Time\\\\Time \ of \ echo = (2\ * \ distance)/(speed) \\\\distance = (Time \ of \ echo \ * \ speed)/(2) \\\\distance = (2 \ * \ 330)/(2) \\\\distance = 330 \ m`

Therefore, the distance between the person and the hill is 330 m.