zamień 5km/h i 20cm/s na m/s dm/min cm/s

[latex]5 frac{km}{h} =5 frac{1000m}{3600s} approx1,39 frac{m}{s} \ \ 5 frac{km}{h} =5 frac{10000dm}{60min} approx833 frac{dm}{min} \ \ 5 frac{km}{h} =5 frac{100000cm}{3600s} approx139 frac{cm}{s} [/latex] [latex]20 frac{cm}{s} =20 frac{0,01m}{s} =0,2 frac{m}{s} \ \ 20 frac{cm}{s} =20 frac{0,1dm}{ frac{1}{60} min} =120 frac{dm}{min}[/latex]