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> 汽车以6m/s的速度匀速驶上长为60m的斜坡，经10s到达坡顶，接着又以10m/s的速度从坡顶沿原路匀速返回，经6s到达坡底，该汽车在上下坡全程中的平均速度是 A.7.5m/s B.8m/s C.6.25m/s D.3.75m/s

问题：

发布时间：2024-09-07

汽车以6m/s的速度匀速驶上长为60m的斜坡，经10s到达坡顶，接着又以10m/s的速度从坡顶沿原路匀速返回，经6s到达坡底，该汽车在上下坡全程中的平均速度是

A.7.5m/s
B.8m/s
C.6.25m/s
D.3.75m/s

参考答案：

提问用户：nb***s7u

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