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A sonar device on a submarine sends out a signal and receives an echo 5 seconds later.Calculate the speed of sound in water if the distance of the object

is 3625m.


time to go = 2.5 seconds
time to come = 2.5 seconds
total time = 5 seconds
distance = 3625 m
speed of sound in water = distance covered by sound /time.
= 3625/2.5
= 1450 m/s.
the speed of sound is 1450 m/s
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Hey Saniarisha what the hell why u deleted my answer
In the case of an echo the formula is
2 x distance=speed x time
Here the sound travels towards the surface which is d and after hitting back it comes to the source which has the same distance. So,2 x distance
3625 x 2=s x 5
7250=s x 5
therefore the speed of the signal is 1450m/s
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