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Magnitude and direction

  1. Oct 29, 2015 #1
    I attached problem.

    I got F1 = 2.7x10-8
    and F2 = 8.3x10-9

    sqrt(f1^2 +f2^2) = 2.818x10^-8

    theta was inverse tan of f1/f2. got 72.8

    please help :(
     

    Attached Files:

  2. jcsd
  3. Oct 29, 2015 #2

    SteamKing

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    I don't get these forces. Perhaps you should attach you calculations.
    Re-check your calculations for F1 and F2.
     
  4. Oct 29, 2015 #3
    I think I know what I did...dumb mistake.

    Did you get:
    f1=2.04E-7
    f2=1.762E-7

    NEW magnitude= 2.69E-7
    NEW theta=49
     
  5. Oct 29, 2015 #4
    and I was using F=G(7.30)(7.30)/(0.132)^2 for F1 and F2 just subbed in 0.427.

    Thanks for your help.
     
  6. Oct 29, 2015 #5

    SteamKing

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    F2 is still incorrect.
     
  7. Oct 29, 2015 #6
    Yeah I don't know what I did there. I got it now though. magnitude:2.05E-7 and direction of 85 degrees.

    Thank you!
     
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