The 1s are initial pressure and volume and the 2s. P F A P F A. Total pressure force on small strip dF rgh x b x dh.
Pressure Formula Fluid The two formulas look similar because theyre the same principle.
You can derive P r g h from P mgA using the following steps to obtain the pressure formula for fluids. P F A P F A. Fa sinth Fb Fa costh Fc by equilibrium Aa sinth Ab Aa costh Ac by geometry F a A a F b A b F c A c. Pressure_pascals m_kg g_acceleration area_m2.