问题
填空题
72km/h=______m/s;15m/s=______km/h.
答案
①72km/h=72×
m/s=20m/s;1 3.6
②15m/s=15×3.6km/h=54km/h.
故答案为:20;54.
72km/h=______m/s;15m/s=______km/h.
①72km/h=72×
m/s=20m/s;1 3.6
②15m/s=15×3.6km/h=54km/h.
故答案为:20;54.