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Question about impulse forces and tipping point of block

  1. Nov 6, 2013 #1
    Sorry if I am posting this in the wrong place but this is my first post.

    I know the equation for tipping of a block when force is slowly added until it either tips of slides is umg=mgL/2h but I have noticed that when you quickly strike the block with your finger, the point at where the block tips becomes much lower. Does anybody know why this is or know what the equation is that explains this?


    Thanks!
     
  2. jcsd
  3. Nov 7, 2013 #2
    The equation you provided assumes equilibrium. If you strike the block quickly, the block will not be at equilibrium.
     
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