1km = 1000m
1h=3600 sec
[tex] \frac{360km}{1h} = \frac{360000m}{3600s} = 1000 m/s
[/tex]
[tex] \frac{7200}{1h} = \frac{7200m}{3600s} = 2m/s[/tex]
[tex] \frac{1200m}{60s} =2m/s[/tex]
[tex] \frac{72000m}{60s} =1200m/s[/tex]
[tex]180dm=18m
[/tex]
[tex] \frac{18m}{60s} =0,3m/s[/tex]
[tex] \frac{10800m}{60s} =180m/s[/tex]