1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Homework Help: 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.

    ω=1.394 rad/s VA=0.408 m/s down


    2. Relevant equations

    Va=Vb +Va/b
    law of sines

    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


    User Avatar
    Science Advisor
    Homework Helper
    Gold Member

    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.
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook

Have something to add?
Draft saved Draft deleted