[tex]Dane:\\V = 2 \ 000 \ cm^{3} = 0,002 \ m^{3}\\d = 700\frac{kg}{m^{3}}\\g = 10\frac{N}{kg}\\Szukane:\\F_{w} = ?\\\\Rozwiazanie\\\\F_{w} = d\cdot g\cdot V\\\\F_{w} = 700\frac{kg}{m^{3}}\cdot10\frac{N}{kg}\cdot 0,002 \ m^{3}\\\\\boxed{F_{w} =14 \ N}[/tex]