Odpowiedź :
[tex]dane:\\v_{o} = 0\\t = 20 \ s\\v = 20\frac{m}{s}\\szukane:\\s = ?\\\\s = v_{sr}\cdot t\\\\v_{s} = \frac{v-v_{o}}{2} = \frac{1}{2}v\\\\s = \frac{1}{2}vt\\\\s = \frac{1}{2}\cdot20\frac{m}{s}\cdot20 \ s\\\\s = 200 \ m[/tex]
[tex]dane:\\v_{o} = 0\\t = 20 \ s\\v = 20\frac{m}{s}\\szukane:\\s = ?\\\\s = v_{sr}\cdot t\\\\v_{s} = \frac{v-v_{o}}{2} = \frac{1}{2}v\\\\s = \frac{1}{2}vt\\\\s = \frac{1}{2}\cdot20\frac{m}{s}\cdot20 \ s\\\\s = 200 \ m[/tex]