Odpowiedź :
[tex]v = 25\frac{m}{s}\\t = 20 \ min = 20\cdot60 \ s = 1200 \ s\\\\s = v\cdot t\\\\s = 25\frac{m}{s}\cdot1200 \ s\\\\s = 30 \ 000 \ m = 30 \ km[/tex]
[tex]v = 25\frac{m}{s}\\t = 20 \ min = 20\cdot60 \ s = 1200 \ s\\\\s = v\cdot t\\\\s = 25\frac{m}{s}\cdot1200 \ s\\\\s = 30 \ 000 \ m = 30 \ km[/tex]