Question

The speed of sound in water is 1498 m/s. A sonar signal is sent from a ship at a point just below the water surface and 1.80 s later the reflected signal is detected. How deep is the ocean beneath the ship? uggghh

Answer 1

s=vxt/2=1348.2

Answer 2

By definition
Speed = (Distance) / (Time)

thus
Distance = (Speed)(Time).

In this case
Speed = 1,498 m/s
Time = 1.80 s

Therefore, in this case, the sound has travelled a distance of
d = (speed)(time)
= (1498 m/s)(1.80 s)
= 2,696.4 m

Now, if the sound has travelled that far, how far away is the the bottom of the ocean?