[tex]dane:\\v_{o} = 2\frac{m}{s}\\t = 3 \ s\\v=8\frac{m}{s}\\szukane:\\a = ?\\s = ?[/tex]
Rozwiązanie
[tex]Przyspieszenie \ a:\\a = \frac{\Delta v}{t}\\\\\Delta v = v-v_{o} = 8\frac{m}{s} - 2\frac{m}{s} = 6\frac{m}{s}\\\\a = \frac{6\frac{m}{s}}{3 \ s} = 2\frac{m}{s^{2}}\\\\Droga \ s:\\s = v_{o}t + \frac{1}{2}at^{2}\\\\s = 2\frac{m}{s}\cdot3 \ s + \frac{1}{2}\cdot2\frac{m}{s^{2}}\cdot(3 \ s)^{2}}\\\\s = 6 \ m + 9 \ m = 15 \ m[/tex]