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Physics (angle Vector)

You have a boat that is capable of moving at 11.8 m/s through still water. You wish to cross a river that flows due south at 5.4 m/s. At what numerical compass heading must you pilot your boat so that you will reach a destination that is due east of your current position?

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  1. cos (heading) = 5.4/11.8

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  2. Vb - 5.4i = 11.8.
    Vb = 11.8 + 5.4i = 13m/s[24.6o] N. of E.
    = Compass heading.

    9-5.4i) =

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