A Sonar engineer sends a signal from a submarine at 7500 M depth below the surface towards a ship at the surface of the ocean.
Assuming the velocity of the sound in water as 1.5 km per second , how long will it take for the Eco to reach the submarine.
1)5s
2)10s
3)15s
4)50s
Also , state how did you slove it ( show the solvings ) with explanation
Assuming the velocity of the sound in water as 1.5 km per second , how long will it take for the Eco to reach the submarine.
1)5s
2)10s
3)15s
4)50s
Also , state how did you slove it ( show the solvings ) with explanation
Answers & Comments
Verified answer
Explanation:
To calculate the time it takes for the echo to reach the submarine, you can use the formula for time:
Time (t) = Distance (d) / Velocity (v)
In this case, the distance is the depth of the submarine, which is 7500 meters, and the velocity of sound in water is 1.5 kilometers per second, which you should convert to meters per second for consistent units.
1 kilometer = 1000 meters, so 1.5 kilometers = 1500 meters
Now, plug these values into the formula:
t = 7500 meters / 1500 meters per second
t = 5 seconds
So, it will take 5 seconds for the echo to reach the submarine. Therefore, the correct answer is option 1) 5s.
Answer:
We know that,
Speed=
time
Distance
Time =5s
Distance =3625 m
Total distance to be travelled by sound =2×3625, as it is the distance taken by sonar wave to transmit and receive =7250 m
So, Speed =
5
7250
=1450m/s