43.2km/h=( 12)m/s 1.2m/s=(4.32 )km/h
43.2km/h=43200m/h=12m/s 1.2m/s=0.0012km/s=4.32km/h
1m/s=3.6km/h
根据它算得:43.2km/h=12m/s 1.2m/s=4.32 km/h
43.2km=43200m
1h=3600s
43200/3600=12m/s
1.2m=0.0012km
1s=1/3600h
0.0012/(1/3600)=4.32
1.43.2*1001000/60=720
2.1.2/1000*60=0.0072