[tex]dane:\\v_{o} = 0\\t = 1 \ min = 60 \ s\\v = 30\frac{m}{s}\\F_{w} = 300 \ N\\szukane:\\m = ?\\\\Rozwiazanie\\\\Z \ II \ zasady \ dynamiki:\\\\a = \frac{F_{w}}{m} \ \ \Rightarrow \ \ m = \frac{F_{w}}{a}\\\\a = \frac{\Delta v}{t} = \frac{v}{t} = \frac{30\frac{m}{s}}{60 \ s} = 0,5\frac{m}{s^{2}} = 0,5\frac{N}{kg}\\\\m = \frac{300 \ N}{0,5\frac{N}{kg}} = 600 \ kg[/tex]
Odp. Masa pojazdu m = 600 kg.
