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Homework Help: Energy absorbed in Charpy Test

  1. Sep 18, 2011 #1
    1. The problem statement, all variables and given/known data

    What would be the energy absorbed if a 60-lb, 31.5-in pendelum was released from an angle of 50 degrees hit a test bar, then rose to an angle of 20 degrees after impact?

    This is done using a charpy test

    2. Relevant equations

    Not sure where to begin

    3. The attempt at a solution

    Not sure where to begin
  2. jcsd
  3. Sep 18, 2011 #2


    User Avatar

    Staff: Mentor

    Why do you suppose the pendulum only has a 20 degree rise after the impact, when the initial angle was 50 degrees? What's different?
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