Hydrostatics - force on pistons in fluid

[Mandeep Deka]

Homework Statement

Assume a cubical container with liquid filled in it and with one hole in each side in its four lateral faces with same cross-sectional area A. Now there are pistons covering these holes which keep the fluid inside it in equilibrium. If there is an increment of force F on each piston, what is the increment in the pressure at the center of the container?

Homework Equations

The Attempt at a Solution

I am not getting any way to get out with this problem, the answer is F/A but i am not able to figure out anything that i can really use to find the answer.
Please provide some clue, as to how do i get out of it!

 

[tiny-tim]

Hi Mandeep!

Look at it the other way round …

how much would you have to increase the pressure inside the cylinder to make each piston exert an extra force F on something outside?

 

[Mandeep Deka]

Thanks a lot...
I got it. If there is an increase of pressure of magnitude F/A in the center of the liquid, an equal pressure F/A will be exerted in all the directions which will balance the increase in the pressure in the pistons!