[tex]dane:\\v_{o} = 0\\t = 5 \ s\\v = 12\frac{m}{s}\\szukane:\\a = ?\\\\dla \ v_{o} = 0\\\\v = a\cdot t \ \ /:t\\\\a = \frac{v}{t}\\\\a = \frac{12\frac{m}{s}}{5 \ s}\\\\a = 2,4\frac{m}{s^{2}}[/tex]
