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Finding Force of Friction Help

  1. Nov 24, 2011 #1

    physicnoob101

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    1. The problem statement, all variables and given/known data
    ok, so in need to find the force of friction applied onto a model rocket. I dont want the answer, but how to find thr force of friction


    2. Relevant equations
    i know that Ff=μkFn
    Fn=mg

    but i dont know how to find μk
     
    physicnoob101, Nov 24, 2011
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  3. Nov 24, 2011 #2

    Doc Al

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    Staff: Mentor

    What's the situation? Unless your model rocket is sliding across a surface, kinetic friction will not be relevant.
     
    Doc Al, Nov 24, 2011
  4. Nov 24, 2011 #3

    physicnoob101

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    the rocket is using a b6 engines and is being launched into the air.
     
    physicnoob101, Nov 24, 2011
  5. Nov 24, 2011 #4

    Doc Al

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    Staff: Mentor

    You want to explore air resistance and drag, not kinetic friction.
     
    Doc Al, Nov 24, 2011
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