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Relative motion problem (with picture)

  1. Sep 27, 2011 #1
    1. The problem statement, all variables and given/known data
    http://imgur.com/EcjIa


    2. Relevant equations
    I already got the first part (v_b/a) i need to find r dot and theta dot


    3. The attempt at a solution
    well i got v_b/a. for r I was thinking of using sqrt(y^2 +x^2) at the r and taking derivatives of that. i dont quite understand polar coordinates
     
    Last edited: Sep 27, 2011
  2. jcsd
  3. Sep 27, 2011 #2

    DaveC426913

    User Avatar
    Gold Member

    You need to show your attempt at the solution. WE cannot give you help until you have shown your own attempts.
     
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