Question

a ship on the surface of water send a signal and receive feedback after 4 seconds from a submarine inside the water calculate the distance of the submarine from the ship.(the speed of sound in water=1450ms^1)

Answer 1

Given...✍
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time (t) = 4 sec

Speed of sound in water (v) = 1450 m/s

Distance (d) = ?

Now...

v = $\dfrac{2d}{t}$

2d = vt

d = $\dfrac{vt}{2}$

d = $\dfrac{1450\:\times\:4}{2}$

d = 2900 m

Distance between the submarine and ship is $\textbf{2900 m}$

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