Chapter 2 Fundamental Hydraulic Fluid Mechanics 2.2.2 The basic formula of hydrostatics 1.The basic formula of hydrostatics The acting pressures on the fluid at rest,in a container include the weight,force on the fluid surface,shown in Fig.2-4a The total balance force formula is p△4=P△M+Pgh△M(2-9) Formula(2-9)divide by A4,then (2-10) a】 b) p-po+pgh Fig.2-4 The distribution of forces in a container with rest fluid 13 Homepage List Upwards Downwards Retumn ExitChapter 2 Fundamental Hydraulic Fluid Mechanics 13 2.2.2 The basic formula of hydrostatics 1. The basic formula of hydrostatics The acting pressures on the fluid at rest , in a container include the weight, force on the fluid surface, shown in Fig. 2-4a. Fig. 2-4 The distribution of forces in a container with rest fluid The total balance force formula is Formula (2-9) divide by , then = + 0 p A p A gh A     (2-9) = + 0 p p gh  (2-10) A