[tex]dane:\\g = 10\frac{N}{kg}\\a) \ m = 30 \ kg\\b) \ m = 2 \ kg\\c) \ m = 2 \ 500 \ kg\\\\F_{g} = m\cdot g\\\\a) \ F_{g} = 30 \ kg\cdot10\frac{N}{kg} = 300 \ N\\\\b) \ F_{g} = 2 \ kg\cdot10\frac{N}{kg} = 20 \ N\\\\c) \ F_{g} =2500 \ kg\cdot10\frac{N}{kg} = 25 \ 000 \ N = 25 \ kN[/tex]
