[tex]dane:\\v_{o} = 0\\t = 20 \ s\\s = 200 \ m\\szukane:\\v = ?\\\\Rozwiazanie\\\\s = \frac{at^{2}}{2} \ \ /\cdot\frac{2}{t^{2}}\\\\a = \frac{2s}{t^{2}}=\frac{2\cdot200 \ m}{(20 \ s)^{2}} = 1\frac{m}{s}[/tex]
[tex]Dla \ \ v_{o}=0\\\\v = a\cdot t\\\\v = 1\frac{m}{s^{2}}\cdot20 \ s = 20\frac{m}{s}[/tex]
Odp. Autobus osiągnął prędkość v = 20 m/s.
