Odpowiedź :
[tex]S = 1 \ m\times 2 \ m = 2 \ m^{2}\\m = 3 \ kg\\g = 10\frac{N}{kg}\\p = ?\\\\F = m\cdot g = 3 \ kg\cdot10\frac{N}{kg} = 30 \ N\\\\p = \frac{F}{S}\\\\p = \frac{30 \ N}{2 \ m^{2}}=15 \ Pa[/tex]
[tex]S = 1 \ m\times 2 \ m = 2 \ m^{2}\\m = 3 \ kg\\g = 10\frac{N}{kg}\\p = ?\\\\F = m\cdot g = 3 \ kg\cdot10\frac{N}{kg} = 30 \ N\\\\p = \frac{F}{S}\\\\p = \frac{30 \ N}{2 \ m^{2}}=15 \ Pa[/tex]