Polocy!!!!!! zamien jednostki 30m/s = km/h 60km/h = km/min 6km/h = m/min 15m/s= km/h

[latex]30frac{m}{s} = 30cdotfrac{0,001km}{frac{1}{3600}h} = 108frac{km}{h}\\60frac{km}{h} = frac{60km}{60min} = 1frac{km}{min}\\6frac{km}{h} = 6cdotfrac{1000m}{60min} = 100frac{m}{min}\\15frac{m}{s} = 15cdotfrac{0,001km}{frac{1}{3600}h} =54frac{km}{h}[/latex]