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Kinematics of rigid rotor - angular acceleration

  1. Apr 25, 2016 #1
    1. The problem statement, all variables and given/known data
    http://pho.to/A7jM2 [Broken]

    2. Relevant equations


    3. The attempt at a solution

    New_Doc_28_1.jpg
    New_Doc_28_2.jpg
    New_Doc_28_3.jpg


    My question is why the answer of question 15.258 (a) about the angular acceleration of rod BD isn't correct.
    I used the realtion of tan(25) in the end of the solution.
     
    Last edited by a moderator: May 7, 2017
  2. jcsd
  3. Apr 25, 2016 #2

    Simon Bridge

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    Please explain your reasoning.
     
  4. Apr 26, 2016 #3
    Is my equations are ok and you are only asking about the final equation with tan(25) and the t component and the n component?
     
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