Question

A gun is fired from a distance of 1.2 km the echo of the sound is heard at the same place after 7.1 sec find the velocity of the sound​

Answer 1

Explanation:

gun is fired from a distance of 1.2 km from a hill .

The echo of the sound is heard back at the same place after 8 seconds

find the velocity of sound??

:

change 1.2 km to 1200 meters, round trip will be 2400 meters

2400%2F8 = 300 m/sec is the speed of sound