单位换算:72Km⼀h=______m⼀s; 15m⼀s=______Km⼀h;180m⼀min=______m⼀s;340m⼀s=______Km⼀h

2025-05-20 08:31:57
推荐回答(1个)
回答1:

72km/h=72×1km/h=72×

1000m
3600s
=20m/s.
15m/s=15×1m/s=15×
1
1000
km
1
3600
h
=54km/h.
180m/min=180×1m/min=180×
1m
60s
=3m/s.
340m/s=340×1m/s=340×
1
1000
km
1
3600
h
=1224km/h.
故答案为:20;54;3;1224.