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Force of gravity/weight vecotr placement?

  1. Nov 17, 2011 #1
    we were doing a problem that involved pulling on a normal rectangular block with a horizontal force in class. at the point that it just barely starts tipping, we wanted to figure out the force required. i understood how to do that, but what puzzled me is the blocks weight/force of gravity vector placement. should it come form the object's center of mass, or the bottom of the object? and why? sorry, but this just made no sense to me at all.
     
  2. jcsd
  3. Nov 17, 2011 #2
    fast misc
     
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