Fluid Statics: Difference Between Force Formulas

[physocs1]

Homework Statement

What is the difference between these two formulas

Homework Equations

1.Force=rho*g*h*area
2. Force=rho*g*volume
3. Force=rho*height*Area
Where rho= specific weight of fluid

The Attempt at a Solution

I am guessing that 2 is for sphere or cylinders
and for 3 i think it is for flat surfaces
but 1 i don't know if its a combination of both??

 

[NascentOxygen]

Hi physocs1. I'm wondering is this a homework question? Or where has this question arisen?

Please PM me with your answer, so I can decide whether to reopen this thread or leave it locked.