How long will it take the sound pulse to travel out and back?
Navy ships use sonar (sound navigation and ranging) to detect submarines. A sound pulse sent by the ship reflects off the submarine. If the submarine is 1.58km away from the ship, and the speed of sound in seawater is 1463 m/s, how long will it take the sound pulse to travel out and back?
Navy ships use sonar (sound navigation and ranging) to detect submarines. A sound pulse sent by the ship reflects off the submarine. If the submarine is 1.58km away from the ship, and the speed of sound in seawater is 1463 m/s, how long will it take the sound pulse to travel out and back?
1 Answer
Aug 1, 2018
Assuming that both the Naval Ship and the submarine are stationary.
Distance between both
To-and fro distance traveled by sound
Time taken by the round trip of sound
#="Distance"/"Speed"#
#=(3.16xx10^3)/1463=2.2\ s# , rounded to one decimal
