[tex]1.\\
Dane:\\V = 2,4 \ m^{3}\\V_{z} = 0,5V = 0,5\cdot2,4 \ m^{3} = 1,2 \ m^{3}\\d = 1000\frac{kg}{m^{3}}\\g = 10\frac{m}{s^{2}} = 10\frac{N}{kg}\\Szukane:\\F_{w} = ?\\\\Rozwiazanie\\\\F_{w} = d_{cieczy}\cdot g\cdot V_{zanurzonego \ ciala \ lub \ jego \ zanurzonej \ czesci}\\\\\underline{F_{w} = d\cdot g\cdot V_{z}}\\\\F_{w} = 1000\frac{kg}{m^{3}}\cdot10\frac{N}{kg}\cdot1,2 \ m^{3}}\\\\\boxed{F_{w} = 12 \ 000 \ N = 12 \ kN}\\\\(1 \ kN = 1000 \ N)
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[tex]2.\\Dane:\\F_{w} = 600 \ N\\d = 1030\frac{kg}{m^{3}}\\g = 10\frac{N}{kg}\\Szukane:\\V_{z} = ?\\\\Rozwiazanie\\\\F_{w} = d\cdot g\cdot V_{z} \ \ /:(d\cdot g)\\\\V_{z} = \frac{F_{w}}{d\cdot g}\\\\V_{z} =\frac{600 \ N}{1030\frac{kg}{m^{3}}\cdot 10\frac{N}{kg}}\\\\\boxed{V_{z}\approx0,058 \ m^{3}}[/tex]
[tex]3.\\Dane:\\F = 2,5 \ N\\F_{z} = 1,9 \ N\\Szukane:\\F_{w}= ?\\\\F_{w} = F-F_{z}\\\\F_{w} = 2,5 \ N - 1,9 \ N\\\\\boxed{F_{w} = 0,6 \ N}[/tex]
