Notifications
Clear all
0
09/01/2021 12:36 pm
Topic starter
A sonar device on a submarine sends out a signal and receives an echo 5 s later. Calculate the speed of sound in water if the distance of the object from the submarine is 3625 m.
1 Answer
0
09/01/2021 12:40 pm
Here, time interval between the transmission of the signal and its reception, t = 5 s. Distance of the object from the submarine, d = 3625 m. If v is the speed of sound in water, then
2d = vt or v = \(\frac{2d}{t}\) = \(\frac{2 \times 3625}{5}\) = 1450 ms-1