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Inclined plane w/ friction problem

  1. Oct 13, 2009 #1
    1. The problem statement, all variables and given/known data
    A 5-kg block is sliding down an inclined plane. The angle between the incline and the horizontal is 23 degrees. The coefficient of kinetic friction is 0.20. What is the acceleration of the block, in m/s2?


    2. Relevant equations



    3. The attempt at a solution
    Here's the answer that I got, but I'm not sure if it's correct:

    ma = mgsin23 - 0.20mgcos23
    a= gsin23 - .20gcos23 = 2.02 m/s2
    1. The problem statement, all variables and given/known data



    2. Relevant equations



    3. The attempt at a solution
     
  2. jcsd
  3. Oct 13, 2009 #2
    this looks good to me!
     
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