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> 一列蒸汽火车在做匀速直线运动，在远处的人看见火车头上冒出的烟是竖直向上的，这是由于 A.当时外界无风 B.火车顺风行驶，车速与风速大小相等 C.烟雾有惯性作用 D.火车逆风行驶，车速与风速大小相等

问题：

发布时间：2024-09-11

一列蒸汽火车在做匀速直线运动，在远处的人看见火车头上冒出的烟是竖直向上的，这是由于

A.当时外界无风
B.火车顺风行驶，车速与风速大小相等
C.烟雾有惯性作用
D.火车逆风行驶，车速与风速大小相等

参考答案：

提问用户：Ne***Aa0

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