Przelicz jednostki: 1.72 km/h = ? m/s 2.72 km/h = ? km/min 3.72 km/h = ? m/min 4.20 m/s =? km/h

[latex]72 frac{km}{h} = 72 *frac{1000 m}{3600 s} =20 frac{m}{s} [/latex] [latex]72 frac{km}{h} =72* frac{1 km}{60 min} =1,2 frac{km}{min} [/latex] [latex]72 frac{km}{h} =72* frac{1000 m }{60 min} =1200 frac{m}{min} [/latex] [latex]20 frac{m}{s} =20 frac{ frac{1}{1000} km}{ frac{1}{3600} h} = frac{20}{1000} km * frac{3600}{1 h} = 72 frac{km}{h} [/latex]