Kinematics of rigid rotor - angular acceleration

  • Thread starter dorratz
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  • #1
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Homework Statement


http://pho.to/A7jM2 [Broken]

Homework Equations




The Attempt at a Solution



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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.
 
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Answers and Replies

  • #2
Simon Bridge
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Please explain your reasoning.
 
  • #3
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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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