[tex]Dane:\\d = 50 \ cm = 0,5 \ m \ \ \rightarrow \ \ r = 0,25 \ m\\n = 1000\\t=1 \ min=60 \ s\\Szukane:\\v = ?\\\\Rozwiazanie\\\\T = \frac{t}{n} = \frac{60 \ s}{1000} = 0,06 \ s\\\\v = \frac{2\pi r}{T}\\\\v = \frac{2\cdot3,14\cdot0,25 \ m}{0,06 \ s}\\\\\boxed{v = 26,1(6)\frac{m}{s} \approx26,17\frac{m}{s}}[/tex]
