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How do i find the coefficient of friction

  1. Apr 27, 2012 #1
    1. The problem statement, all variables and given/known data

    A block begins to slide down a ramp after being elevated to an angle of 53.75 degrees. What is the coefficient of static friction?

    2. Relevant equations



    3. The attempt at a solution
     
  2. jcsd
  3. Apr 27, 2012 #2
    What formulas do you know regarding incline planes and friction?
     
  4. Apr 27, 2012 #3
    normal force=m*g*sin of angle and net force= m*g* cos of angle
     
  5. Apr 27, 2012 #4
    will i have to find the mass of the block first
     
  6. Apr 27, 2012 #5

    tiny-tim

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    Science Advisor
    Homework Helper

    hi adorrea! :smile:
    no, call the mass "m" …

    it'll cancel out in the end :wink:

    (and assume the acceleration is 0)
     
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