[tex]dane:\\m = 1200 \ kg\\v_{o} = 0\\t = 10 \ s\\v = 2\frac{m}{s}\\szukane:\\F = ?\\\\Rozwiazanie\\\\F = m\cdot a\\\\a = \frac{\Delta v}{t} = \frac{v-v_{o}}{t} = \frac{v}{t} = \frac{2\frac{m}{s}}{10 \ s} = 0,2\frac{m}{s^{2}}\\\\F = 1200 \ kg\cdot0,2\frac{m}{s^{2}}\\\\F = 240 \ N[/tex]
