完成单位换算:72km⼀h=______m⼀s

完成单位换算:72km/h=______m/s.
2025-05-21 16:39:05
推荐回答(1个)
回答(1):

72km/h=72×

1000m
3600s
=72×
1
3.6
m/s=20m/s;
故答案为:20.