[tex]Dane:\\m = 1,5 \ t = 1 \ 500 \ kg\\s = 100 \ m\\W = 20 \ kJ = 20 \ 000 \ J\\Szukane:\\a = ?\\\\Rozwiazanie\\\\W = F\cdot s \ \ \ |:s\\\\F = \frac{W}{s} = \frac{20000J}{100 \ m} = \frac{20000 \ N\cdot m}{100 \ m} = 200 \ N\\\\Z \ II \ zasady \ dynamiki:\\\\a = \frac{F}{m}\\\\a = \frac{200 \ N}{1500 \ kg} = \frac{200\cdot \ kg\cdot\frac{m}{s^{2}}}{1500 \ kg}\\\\\boxed{a \approx 0,13\frac{m}{s^{2}}}[/tex]
