A person is standing at the sea shore. An observer on the ship which is anchored in between a vertical cliff and the person on the shore fires a gun. the person on the shore hears two sounds, 2 seconds and 3 seconds after seeing the smoke of the fired gun. If the speed of sound in the air is 320 `m s^(-1)`-, then calculate :

the distance between the observer on the ship and the person on the shore.

Explanation

The person on the shore hears the first direct sound after 2 s from the observer.
`therefore` Distance between observer on ship and man on shore
= `vxxt_(1)`
= `320xx2=640m`