1m/s=____km/h 1m/s=____m/min
1m/s=____km/h 1m/s=____m/min
1m/s=_____m/min=______km/h:15m/s=____km/h
1m/s=____km/h,
1.5m/s= ____km/h 900s=____min
25cm/s=____m/s?3600m/h=____m/s?
10m/s=____km/s
1.单位换算:(1)43.2km/h=____m/s (2)30m/s=_____
(1)1km/h= km/min =m/s (2)8m/s= m/min =km/s
1km/min=?km/h=?m/h=?km/s= m/s
如1km/h= m/s 1m/min= km/min .
1m/s=-----cm/min 1km/h=----m/min
用15min跑完了260m,他的速度是____m/s,合___km/h