河宽60米,水速10m\s,船在静水中的速度为8m\s,小船过河的最短时间和最短航程怎么求?是不是还要讨论船速大于水速和船速小于水速的情况?
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![河宽60米,水速10m\s,船在静水中的速度为8m\s,小船过河的最短时间和最短航程怎么求?是不是还要讨论船速大于水速和船速小于水速的情况?](/uploads/image/z/9502642-10-2.jpg?t=%E6%B2%B3%E5%AE%BD60%E7%B1%B3%2C%E6%B0%B4%E9%80%9F10m%5Cs%2C%E8%88%B9%E5%9C%A8%E9%9D%99%E6%B0%B4%E4%B8%AD%E7%9A%84%E9%80%9F%E5%BA%A6%E4%B8%BA8m%5Cs%2C%E5%B0%8F%E8%88%B9%E8%BF%87%E6%B2%B3%E7%9A%84%E6%9C%80%E7%9F%AD%E6%97%B6%E9%97%B4%E5%92%8C%E6%9C%80%E7%9F%AD%E8%88%AA%E7%A8%8B%E6%80%8E%E4%B9%88%E6%B1%82%3F%E6%98%AF%E4%B8%8D%E6%98%AF%E8%BF%98%E8%A6%81%E8%AE%A8%E8%AE%BA%E8%88%B9%E9%80%9F%E5%A4%A7%E4%BA%8E%E6%B0%B4%E9%80%9F%E5%92%8C%E8%88%B9%E9%80%9F%E5%B0%8F%E4%BA%8E%E6%B0%B4%E9%80%9F%E7%9A%84%E6%83%85%E5%86%B5%3F)
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