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a man can row at max. speed of 0.9m/s relative to the water. he is at point A on a riverbank and wishes to reach the point B at the other bank which is 200m upstream from a point directly opposite at the point A. the river has straight parallel banks 1000m apart and flows 0.3 m/s.

a) in what direction should the mas pointed his boat?
b) how long is the time will the man take to reach point B if he rows his boat as fast as he can?

 

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