Zamień jednostki. 5 km/min - zamień na m/s 10 m/min - zamień na km/h 108 m/s - zamień na km/h PROSZĘ SZYBKO I DOBRZE!! BO MAM KARTKÓWKĘ JUTRO :P

1km = 1000m 1m = 0,001km 1h = 60min 1min = 60s 1h = 3600s [latex]5frac{km}{h}=5cdot frac{1000m}{60s}=frac{5000}{60}=83,33frac{m}{s}\10frac{m}{min}=10cdot frac{frac{1}{1000}km}{frac{1}{60}h}=frac{0,01}{frac{1}{60}}=0,6frac{km}{h}\108frac{m}{s}=108cdot frac{frac{1}{1000}km}{frac{1}{3600}s}=frac{0,108}{frac{1}{3600}}=388,8frac{km}{h}[/latex]