Odpowiedź :
[tex]Dane:\\v_{o} = 3\frac{m}{s}\\t = 4 \ s\\a = 2\frac{m}{s^{2}}\\Szukane:\\v = ?\\\\v = v_{o} + at\\\\v = 3\frac{m}{s}+2\frac{m}{s^{2}}\cdot4 \ s\\\\v = 3\frac{m}{s}+8\frac{m}{s}\\\\\boxed{v = 11\frac{m}{s}}[/tex]
[tex]Dane:\\v_{o} = 3\frac{m}{s}\\t = 4 \ s\\a = 2\frac{m}{s^{2}}\\Szukane:\\v = ?\\\\v = v_{o} + at\\\\v = 3\frac{m}{s}+2\frac{m}{s^{2}}\cdot4 \ s\\\\v = 3\frac{m}{s}+8\frac{m}{s}\\\\\boxed{v = 11\frac{m}{s}}[/tex]