单位换算:72Km/h=_m/s; 15m/s=_Km/h;180m/min=_m/s;340m/s=_Km/h.
问题描述:
单位换算:72Km/h=______m/s; 15m/s=______Km/h;180m/min=______m/s;340m/s=______Km/h.
答
72km/h=72×1km/h=72×
=20m/s.1000m 3600s
15m/s=15×1m/s=15×
=54km/h.
km1 1000
h1 3600
180m/min=180×1m/min=180×
=3m/s.1m 60s
340m/s=340×1m/s=340×
=1224km/h.
km1 1000
h1 3600
故答案为:20;54;3;1224.