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A man can swim in still water at a speed of 3km/hr.He wants to cross the river that flows at 2km/hr and reach the point directly opposite to his starting Point.find the angle if his body makes with the river flow.

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2 answers
  1. Vsw = Vs + Vw = 3 + 2i, Q1.

    Tan A = 2/3 = 0.66667.
    A = 33.7o E. of N.

    Body angle = 33.7o W. of N.

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  2. 41.8
    3sin@=2

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