Question

An observer A fires a gun and another observer B at a distance 1650 m away from A hears its sound. If the speed of sound is 330 m s^-1, find the time when B will hear the sound after firing by A. 

Answer 1

Distance between the two observers = 1650 m

Speed of sound = 330 m/s

Time in which B hears the sound = Distance / speed = 1650/330 = 5s

Thus, B will hear the sound 5s after the gun is shot.