AP Physics 1 — Fluids Equation Finder AP Physics 1 — Fluids Select the variables you know. Equations will show missing variables or indicate all variables are known. Known Variables ρ — Density m — Mass V — Volume P — Pressure F — Force A — Area P₀ — Reference pressure g — Gravitational acceleration h — Height v₁ — Velocity at point 1 v₂ — Velocity at point 2 P₁ — Pressure at point 1 P₂ — Pressure at point 2 A₁ — Area 1 A₂ — Area 2 F₁ — Force 1 F₂ — Force 2 Find Equations Possible Equations