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Vector A points in the negative x direction. Vector B points at an angle of 27.0 degress above the positive x axis. Vector C has a magnitude of 20 m/s and points in a direction 39.0 degress below the positive x axis.
Given that A+B+C=0, find the magnitudes of A and B.

  • college physics -

    A = a*(-1, 0)^T
    B = b*(cos(27°), sin(27°))^T
    C = 27*(cos(39°), -sin(29°))^T

    By using the identity imposed on us by the task, we immediately obtain the result by solving the emerging L.E.S..

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