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March 25, 2017

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A diagram has vector A at 30 degrees above the positive x axis. length = 3 m

Vector B is ON the negative x-axis. length = 1 m

Vector C is ON the negative y-axis. Length is 2 m

What is the direction in degrees of vector a + vector B + vector C?

  • Physics - ,

    In x direction: 3 cos 30 - 1 = 1.6
    In y direction: 3 sin 30 - 2 = 1.5-2 = -.5

    tan^-1 (-.5/1.6) = - 17.35 degrees

    or east 17.35 deg south

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