[tex]Dane:\\p = 2 \ 000 \ hPa = 200 \ 000 \ Pa = 200 \ 000 \ \frac{N}{m^{2}}\\S = a^{2} = (0,5 \ m)^{2} = 0,25 \ m^{2}\\Szukane:\\F = ?\\\\Rozwiazanie\\\\p =\frac{F}{S} \ \ /\cdot S\\\\F = p\cdot S\\\\F = 200 \ 000 \ \frac{N}{m^{2}}\cdot0,25 \ m^{2}}\\\\\boxed{F = 50 \ 000 \ N = 50 \ kN}\\\\(1 \ kN = 1000 \ N)[/tex]
