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Homework Help: Rectangular and polar coordinates

  1. Feb 25, 2009 #1
    1. The problem statement, all variables and given/known data

    The rectangular and polar coordinates of a point are (x,y) and (r, Theta ) and theta equals 67 degrees


    2. Relevant equations

    ????????????

    3. The attempt at a solution

    I know nothing about this does anyone know an equation or anything PLEASEE thanks.
     
  2. jcsd
  3. Feb 25, 2009 #2

    mgb_phys

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    what is the question?
     
  4. Feb 25, 2009 #3
    OHH oops.

    Determine the value of r and y
     
  5. Feb 25, 2009 #4

    mgb_phys

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    Start by drawing it on a graph.
    Put x along the bottom and y up the side.
    Now draw a line at 67 deg above the X axis (this is the normal convention)

    For a point1 unit along the diagonal line draw lines down to the X and across to the Y axis - now use normal trig stuff (sin/cos) for these two triangles
     
    Last edited: Feb 26, 2009
  6. Feb 26, 2009 #5
    thank you very much. very helpful.
     
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