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Statics Questions involving finding forces

  1. Oct 8, 2012 #1
    1. The problem statement, all variables and given/known data

    http://ft.trillian.im/b0f9eae6eee2cb82091d0bd460ed09948b0cf819/6bh6EcByYLCp8YJWVJ5pqqnrqKcIY.jpg

    2. Relevant equations

    Fx= Fcos(theta)
    Fy=Fsin(theta)



    3. The attempt at a solution

    Starting with number one, I can't understand how to find the force given by that contact by B. The vertical force on the spring can be found by the given constant and distance of course.

    I can't even see the forces on the other 2. So hard to visualize a FBD >.<
     
  2. jcsd
  3. Oct 9, 2012 #2

    tiny-tim

    User Avatar
    Science Advisor
    Homework Helper

    Hi Kalookakoo! :smile:
    The force between the roller and that thing at the bottom must be perpendicular to the surface (so through the centre, B, of the roller) …

    so, doing a free body diagram for the roller on its own, the direction of the force at B must be … ? :wink:
     
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