Zamień: 60m/s - km/h 108km/h - m/s Daje naj!

[latex]60frac{m}{s}=60*frac{frac{1}{1000}m}{frac{1}{3600}s}=60*frac{1km}{1000}*frac{3600}{1h}=60*frac{3600km}{1000h}=216frac{km}{h}[/latex] [latex]108frac{km}{h}=108*frac{1000m}{3600s}=30frac{m}{s}[/latex]

1000 m = 1 km 1 km = 0,001 m 1 h = 3600 s 1 s = 1/3600 h 60 m/s = 60 * 0,001km/(1/3600)s = 216 km/h 108 km/h = 108 * 1000m/3600s = 30 m/s