# Depth and pressure in a submarine

## Homework Statement

As a submarine dives, the pressure on its hull..

a. remains constant
b. increases
c. depends on the decrease in volume of the submarine
d . decreases
e. depends on the thickeness of the walls of the submarine

P = F / A

## The Attempt at a Solution

Not a.

Not c. since the volume remains constant. Ballasts are simply used to allow in water in order to dive...

Not d. Pressure increases as one goes deeper.

I think the answer is either b or e. The pressure on the hull does increase but that is compensated by increasing the thickness of the hull....

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Nidum
Gold Member
The thickness of the hull only determines it's strength ie the pressure it will withstand before imploding . Therefore correct answer to you problem is ?

The thickness of the hull only determines it's strength ie the pressure it will withstand before imploding . Therefore correct answer to you problem is ?
Yes that makes sense. Thus the pressure on the hull increases as the submarine dives. Correct?

Nidum