physics (vector)

the resultant of two vector
A and B pependicular to vector A and its magnitude is equalto half the magnitude of vector b what is the angle between them . How?

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  1. Va = F1.

    Vb = 2F1.

    tanA = Y/X = 2F1/F1 = 2.
    A = 63.4 Deg. = Angle between resultant
    and Va.

    90 - 63.4 = 26.6 Deg. = Angle between
    resultant and Vb.

    NOTE: Va is parallel to the x-axis and
    Vb is parallel to the y-axis.

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