1. The problem statement, all variables and given/known data What is the difference between these two formulas 2. Relevant equations 1.Force=rho*g*h*area 2. Force=rho*g*volume 3. Force=rho*height*Area Where rho= specific weight of fluid 3. 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??