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    Vectors, Work and Orthogonal Vectors

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    Find the small positive angle from the positive X-axis to the vector OP that corresponds to (3,3)

    Find the work done by the constant force 4i-2j if the point of application moves along the line segment from P(1,1) to Q(5,7)

    Determine m such that the two vectors 3i-9j and mi+2j are orthogonal

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    https://brainmass.com/math/vector-calculus/vectors-work-orthogonal-vectors-117580

    Solution Preview

    Find the small positive angle from the positive X-axis to the vector OP that corresponds to (3,3)

    Solution. Assume that the angle is alpha. Then we have
    tan(alpha)=3/3=1
    So, alpha=45 degrees

    Find the work ...

    Solution Summary

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