4.5km/h=?m/s
问题描述:
4.5km/h=?m/s
答
1.25m/s
过程4.5km/h=4500m/h=4500m/3600s=1.25m/s
4.5km/h=?m/s
1.25m/s
过程4.5km/h=4500m/h=4500m/3600s=1.25m/s