[tex]Dane:\\v_{o} = 0\\t = 2,5 \ s\\v = 97\frac{km}{h} = 97\cdot\frac{1000 \ m}{3600 \ s}=26,9(4) \frac{m}{s}=26,94\frac{m}{s}\\Szukane:\\a = ?\\\\\\a = \frac{\Delta v}{t} = \frac{v-v_{o}}{t}=\frac{v}{t}\\\\a = \frac{26,94\frac{m}{s}}{2,5 \ s}\\\\\boxed{a = 10,78\frac{m}{s^{2}}}[/tex]
