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!

Angular velocity of rigid body

  1. Feb 6, 2010 #1
    i am trying to solve this question.

    A thin stick of mass M = 4.9 kg and length L = 2.6 m is hinged at the top. A piece of clay, mass m = 1.0 kg and velocity V = 4.9 m/s hits the stick a distance x = 2.20 m from the hinge and sticks to it. What is the angular velocity of the stick immediately after the collision?

    in order to find the v i used momentum conservation.
    now my question are:
    is the v i found the v of center of mass?
    how do i find the w from here, that is what is my r and why?

  2. jcsd
  3. Feb 6, 2010 #2
    Guess you can answer this if you answered the one I asked?
  4. Feb 7, 2010 #3


    User Avatar
    Staff Emeritus
    Science Advisor
    Homework Helper

    Hmm, I'm not sure to be honest. I would use angular momentum conservation instead.
  5. Feb 8, 2010 #4
    Yes, but only about the point where the force acts,the hinge that is.
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook