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You are given three displacement vectors: with magnitude 5.0 m in the direction of 60o below the negative x-axis, vector, has an x-component of +2.5 m and a y-component of +6.0 m and vector has magnitude of 2.5 m in the negative y-axis.

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    A = 5m[240o]
    B = 2.5+6i
    C = -2.5i

    X = 5*cos240 + 2.5 = 0
    Y = 5*sin240 + 6 - 2.5 = -0.83

    D = 0-0.83i = 0.83m[-90o].

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