[tex]Dane:\\m = 1500 \ kg\\r = 200 \ m\\F = 1000 \ N\\Szukane:\\v = ?\\\\Rozwiazanie\\\\F = \frac{mv^{2}}{r} \ \ /\cdot\frac{r}{m}\\\\v^{2} = \frac{F\cdot r}{m} \ \ /\sqrt{}\\\\v = \sqrt{\frac{F\cdot r}{m}}\\\\v = \sqrt{\frac{1000 \ N\cdot200 \ m}{1500 \ kg}} = \sqrt{\frac{1000 \ kg\cdot\frac{m}{s^{2}}\cdot200 \ m}{1500 \ kg}}\approx133,(3)\frac{m}{s}\approx11,55\frac{m}{s}\\\\11,55\frac{m}{s} = \frac{\frac{1}{1000}km}{\frac{1}{3600}h}=11,55\cdot3,6 \ \frac{km}{h} \approx 41,58\frac{km}{h}[/tex]
[tex]\boxed{v \approx41,6\frac{km}{h}}[/tex]
