question_answer 37)

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. 

Answer:

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