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science,physics

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A ship is heading due north at 12km/h in a tide moving 5km/h westward. Determine the magnitude and direction of the resultant velocity of the ship?

  • science,physics -

    speed = sqrt (144 + 25)
    = 13

    tan angle north of west = 12/5
    so angle = 67.4
    so
    west 67.4 north
    or north 22.6 west
    or
    337.4 on your compass

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