1km/h等于多少m/s?写出具体过程,

来源：学生作业帮编辑：作业帮分类：综合作业时间：2024/05/03 10:52:54

1km/h=1000m/h=1000m/3600s=5/18 (m/s)=0.2777777777778m/s

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