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cdphys
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Homework Statement
Q1)
Let vector B = (5.00m, 65°), let the magnitude of vector C equal (=) the magnitude of vector A, and C has a direction 20° greater than vector A.
A(dot/scalar product)B = 22.0m^2
B(dot/scalar product)C = 39.0m^2
Find magnitude of A and its direction (angle)?
Homework Equations
Bx = Bcosθ
By = Bsinθ
Trig
The Attempt at a Solution
For Q1 I have tried a variety of methods. To obtain a few angles or magnitudes but I am literally stuck, not even sure where to start. I tried to find the angle between B and C to obtain the Magnitude of C which will equal A... afterwards find the angle between A and B with the newly found magnitude (A = C). Maybe that is the wrong approach, but I could not figure out how to find Mag of C without Cx or Cy...
I am not sure how else to transcribe the math I have on paper to this forum, but if this is lacking information a hint in the right direction would be truly appreciated.
Thanks a lot,
Cd
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