Question

c) Find the force acting on the windows of area 20cm x 20cm of a submarine at this depth, the interior of which is
at sea level atmospheric pressure. The density of sea water is 1.03 x 103 kg/m, g = 10m/s.
700km from its surface. Calculate: i) Kinetic energy ii) Potential energy iii) tota​

Answer 1

Answer :

C

Solution :

Here,

<br> The pressure outside the submarine is <br>

<br> Where

is the atmospheric pressure <br> Pressure inside the submarine is

. <br> Hence, net pressure acting on the window is gauge pressure. <br> Gauge pressure

<br>

<br> Area of a window is <br>

<br> Force acting on the window is <br>

<br>