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anonymous

  • 4 years ago

The displacement vectors A and B, when added together, give the resultant vector R, so that R = A + B. Use the data in the drawing and the fact that phi = 34° to find the magnitude R of the resultant vector and the angle θ that it makes with the +x axis. R = m θ = °

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  1. anonymous
    • 4 years ago
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    WHERE IS THE DRAWING???

  2. anonymous
    • 4 years ago
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    in the physics section ill post it here

  3. anonymous
    • 4 years ago
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    |dw:1327256275315:dw|

  4. anonymous
    • 4 years ago
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    is R = \[\sqrt{(A _{x}+B _{x}}) ^{2}+ (A _{y}+B _{y)}^{2}\]

  5. anonymous
    • 4 years ago
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    use the Law of Cosines

  6. anonymous
    • 4 years ago
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    so 4cos34 would be R?

  7. anonymous
    • 4 years ago
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    I'm using cos(56) as my middle angle, something like A^2 + B^2 - 2ABcos(56) = R to find the length of R

  8. anonymous
    • 4 years ago
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    the angle 56 is complementary to 34, sandwiched between A and B with R as the opposite side of the triangle.

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