15m/s= _____km/h 54km/h=_____m/s 2700m/min=_____m/s 432km/h=
15m/s= _____km/h 54km/h=_____m/s 2700m/min=_____m/s 432km/h=
36km/h=_____m/s
1m/s=_____m/min=______km/h:15m/s=____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
km/h=?m/s?
40m/s =_____km/h?
(1)1km/h= km/min =m/s (2)8m/s= m/min =km/s
换算:54km/h=?m/s,
54km/h=多少m/s