[tex]1.\\dane:\\v_{o} = 0\\t = 5 \ s\\v = 50\frac{m}{s}\\szukane:\\a = ?\\\\a = \frac{\Delta v}{t} = \frac{v-v_{o}}{t} = \frac{v}{t}\\\\a = \frac{50\frac{m}{s}}{5 \ s} = 10\frac{m}{s^{2}}[/tex]
[tex]2.\\dane:\\v_{o} = 0\\a = 3\frac{m}{s^{2}}\\t = 3 \ s\\szukane:\\v = ?\\\\v = a\cdot t\\\\v = 3\frac{m}{s^{2}} \cdot3 \ s =9\frac{m}{s}[/tex]
[tex]3.\\dane:\\v_{o} = 0\\a = 0,6\frac{m}{s^{2}}\\v = 18\frac{m}{s}\\szukane:\\t = ?\\\\v = a\cdot t \ \ /:a\\\\t = \frac{v}{a}\\\\t = \frac{18\frac{m}{s}}{0,6\frac{m}{s^{2}}} = 30 \ s[/tex]
