Question

A ship which is stationary is at a distance of 2900m
from the seabed. The ship sends an ultrasound signal
to the seabed and its echo is heard 4sec. Find the speed of sound in water.​

Answer 1

Given:

distance travelled by sound one time = 2900 metres and the sound comes back so 2d = 2900 × 2 = 5800 metres(2d)

Time taken by the sound to reach ship(t) = 4 secs

The speed of sound in water (s) = ?

So the Solution is:

formula s = 2d/t

s = 5800 / 4

s = 1450m/s

Hope it helps to you