[tex]Dane:\\V = 31 \ m^{3}}\\d = 1000\frac{kg}{m^{3}} \ - \ gestosc \ wody\\g = 10\frac{N}{kg}\\Szukane:\\F_{w} = ?\\\\\\F_{w} = d\cdot g\cdot V\\\\F_{w} = 1000\frac{kg}{m^{3}}\cdot10\frac{N}{kg}\cdot31 \ m^{3}\\\\\boxed{F_{w} = 310 \ 000 \ N = 310 \ kN}\\\\(1 \ kN = 1000 \ N)[/tex]
