54km/h=___________m/s,50m/min=___________km/h.
54km/h=___________m/s,50m/min=___________km/h.
如5km/min= km/h= m/h= km/s= m/s
1km/min=?km/h=?m/h=?km/s= m/s
1.08km/min=?m/s=?km/h
1.2km/min= m/s或 km/h
54km/h=多少m/min
40m\s=( )km\h 3km\min=( )km\min
如1km/h= m/s 1m/min= km/min .
3km/min=()m/s 60m/min=()km/h
(1)1km/h= km/min =m/s (2)8m/s= m/min =km/s
15m/s= _____km/h 54km/h=_____m/s 2700m/min=_____m/s 432km/h=
40KM/H=?M/MIN