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Relative Motion-Sliding Bar

  1. Mar 23, 2013 #1
    1. The problem statement, all variables and given/known data

    The ends of the slender bar remain in contact with their respective support surfaces. If end has a velocity in the direction shown, determine the angular velocity of the bar and the velocity of end.

    Answers:
    ω=1.394 rad/s VA=0.408 m/s down

    attachment.php?attachmentid=57030&stc=1&d=1364086950.png


    2. Relevant equations

    Va=Vb +Va/b
    law of sines
    V=rw


    3. The attempt at a solution

    I've tried using the angles given to use the law of sines and the velocity given in to find Va/b or Va and then using V=rω to find the angular velocity but have had no luck. Any help would be appreciated
     

    Attached Files:

    Last edited by a moderator: Mar 23, 2013
  2. jcsd
  3. Apr 1, 2013 #2

    CWatters

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    Homework Helper

    Hint: Each end of the rod has a component of it's velocity in the direction of the rod. These components must be the same or the length of the rod would change.
     
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