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Homework Help: Find the acceleration in a composition of movement

  1. Dec 12, 2014 #1
    < Mentor Note -- thread moved to HH from the technical physics forums, so no HH Template is shown. Initial work is shown in the attachment. >

    l need to find the acceleration in the D point but i dont know how.
    the 2 circles turn in the same speed ( pi rad/s).

    I use a simulation programme to find the D acceleration ( - 1643 mm/s^2) but how to find it with a mathematical approach ?

    Sorry for my english

    Attached Files:

    Last edited by a moderator: Dec 12, 2014
  2. jcsd
  3. Dec 12, 2014 #2


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    Staff: Mentor

    I don't understand what is fixed to what and I don't see point D.
    Anyway: introduce variables for relevant positions, express your constraints (distances, angles, ...) in terms of those variables, solve the resulting equation system for the position of D. If that turns out to be impossible analytically, use numeric solutions.
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