单位换算:①50cm=______m  ②72km⼀h=______m⼀s

单位换算:①50cm=______m  ②72km/h=______m/s.
2025-05-21 02:22:08
推荐回答(1个)
回答1:


①50cm=50×1×10-2m=0.5m;
②72km/h=72×

1
3.6
m/s=20m/s.
故答案为:0.5;20.