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Homework Help: Angular Impulse and Angular Momentum

  1. Oct 8, 2007 #1
    1. The problem statement, all variables and given/known data

    Mass of both end, distance from the pin point, height of the plug and its mass, angular velocity are given.
    Need to fine angular velocity w of the arm immediately after plug has wedged itself in the block.

    2. Relevant equations

    (Ho)o = (Ho)horizontal

    3. The attempt at a solution

    1) 2(v1)(0.5) = (4+2)(0.5w)(0.5) + 6(0.3w)0.3
    2) v^2 = vo^2 - 2g(y-yo) -> calculate v and substitute in v1

    I find w to be a number smaller than 2 rad/s which is given and i know it's CW.
    I just want to double check my work. thanks.
     
    Last edited: Oct 8, 2007
  2. jcsd
  3. Oct 8, 2007 #2
    if someone can guide me to right direction i'd really appreciate it. :)
     
  4. Oct 8, 2007 #3
    whats the significance of 2 rad/s?
     
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