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当河水的流动速度v水大于船在静水中的航行速度v船时,无论船的航行方向如何,合速度的方向均不能垂直于河岸,船不可能到达正对岸,总是被河水冲向下游,本文试求此时船渡河的最小位移.
When the velocity v of the river is greater than the voyage speed of the vessel in the still water v, the direction of the combined velocity can not be perpendicular to the river bank irrespective of the sailing direction of the vessel. The ship can not reach the opposite shore and is always rushed downstream by the river This paper tries to find the minimum displacement of the ferry river at this time.