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Englishmathquestion!Thanksalot!Solution.Amancanrowaboatinstillwaterat6km/h.Hewishestorowduenorthacrossariver3kmwidewhichisflowingdueEastat2km/h.(1)thedirectioninwhichhemustheadtheboat;(2)thetimetakentoreach

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English math question!Thanks a lot!Solution.
A man can row a boat in still water at 6km/h.He wishes to row due north across a river 3km wide which is flowing due East at 2km/h.
(1)the direction in which he must head the boat;
(2)the time taken to reach the other bank;
(3)how far from his destination he would land if he mistakenly steered due North.
Please..
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这个应该算物理题吧.一个人能在静水中以时速6KM划行.现在有一条宽3KM的河,水的流向是正东方向2KM每小时,如果此人希望保持航向正北划过这条河,那么:1.他的航向应该是什么;2.到达对岸所需的时间;3.如果他错误的把航...
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