Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Lagrange for Rod/nail swinging from horizontal plane

Tags:
  1. Mar 11, 2015 #1
    Hi!

    I need to figure out the Lagrange Equation for a rod or nail swinging from a horizontal plane. The thing is, that while it is swinging back and forth, the while nail is moving along the X axis as well. I was thinking to use 1/2mv^2+(1/2)Iø^2 . Any help would be appreciated!!

    Thanks.
     
  2. jcsd
  3. Mar 11, 2015 #2
    Your description does not make clear what the system is. A figure would really help a lot.

    Your words suggest that you are neglecting some aspect of the kinematics. This is a common, but entirely fatal, error.
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook




Similar Discussions: Lagrange for Rod/nail swinging from horizontal plane
  1. Swinging rod (Replies: 3)

Loading...