[latex]Dane:\ V=30frac{km}{h}=frac{25}{3}frac{m}{s}\ d=100m\ r=frac{1}{2}d=50m \ Szukam:\ T=?\ Rozwiazanie:\ V=frac{s}{T}\ gdzie: s=2pi r\ to:\ V=frac{2pi r}{T}\ \ T=frac{2pi r}{V}\ \ T=frac{2*3,14*50}{frac{25}{3}}=frac{314*3}{25}\ \ Tapprox38s[/latex]
[latex]dane:\v =30km/h = 30 *1000m/3600s = 8,33m/s\d = 100m\r = frac{d}{2} = 50m\szukane:\T = ?[/latex] [latex]v = 2 pi r/T[/latex] [latex]v * T = 2 pi r[/latex] [latex]T = 2 pi r/v[/latex] [latex]T = 2 * 3,14 * 50m/8,33m/s = 37,7[/latex] [latex]T approx 38s[/latex]
