University Physics

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If vector B is added to vector C = 6.7 + 6.9, the result is a vector in the positive direction of the y axis, with a magnitude equal to that of vector C. What is the magnitude of vector B?

  • University Physics -

    Magnitude of C: sqrt(6.7^2+6.9^2). figure that out.

    so what is added?

    A+C=MagnitudeC j

    so A must be -6.7i + (magnitude-6.9)j

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