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Math

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Find the magnitude of the resultant vector of two 5-pound forces that act on an object with an angle of 70° between them.

  • Math -

    let
    u = (5,0)
    v = (5cos70°,5sin70°)
    then
    u+v = (5(1+cos70°),5sin70°) = (6.71,4.70)
    now just get |u+v| and its direction

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