Oblicz : 4km/h = m/s  4cm/h = mm/doba  4cm/h = km/s 5km/h = m/s 5cm/h = mm/doba 5cm/h = km/s 6km/h = m/s 6cm/h = mm/doba 6cm/h = km/s . 

1000m / 3600 s 40 mm / 24 0,04 km / 3600 s 5000 m / 3600 s 50 mm / 24 0.005 km / 3600 s 6000 m / 3600s 60 mm / 24 0,006 km / 3600 s

4km/h =1,(1) m/s =[latex]1frac{1}{9}[/latex] m/s 4cm/h =960   mm/doba  4cm/h =2,(7) km/s= [latex]2frac{7}{9}[/latex] 5km/h =1,3(8) m/s 5cm/h =1200 mm/doba 5cm/h =1,3(8) km/s 6km/h =1,(6) m/s =[latex]1 frac{2}{3}[/latex] 6cm/h = 1440 mm/doba 6cm/h = 1,(6)km/s=[latex]1 frac{2}{3}[/latex]