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Homework Help: Finding the Normal Force of a block

  1. Oct 17, 2011 #1
    1. The problem statement, all variables and given/known data
    And when the block is sliding along a horizontal circular path on the inside of a friction-free cone,the magnitude of the normal force (use the diagram)
    1. is greater than mg, always.
    2. is equal to mg.
    3. may be greater than mg.
    4. is less than mg, always.
    5. may be less than mg.


    2. Relevant equations
    F=ma


    3. The attempt at a solution
    Fn=mg if horizontal plane which means when on a tilted plane, Fn<mg But in this case, the objects spins around which means it puts more force on the cone walls thus... more normal force. i believe it is 3. is this correct?
     
  2. jcsd
  3. Oct 17, 2011 #2
    Can we see the diagram that you were using, or some crude replica of it?
     
  4. Oct 17, 2011 #3
    I thought i uploaded on the last post sorry
     

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