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Kinetic Friction

  1. Mar 12, 2009 #1
    1. The problem statement, all variables and given/known data
    A 880 N crate is being pulled across a level floor by a force F of 395 N at an angle of 25° above the horizontal. The coefficient of kinetic friction between the crate and the floor is 0.25. Find the magnitude of the acceleration of the crate.


    2. Relevant equations
    not quite sure?? was absent


    3. The attempt at a solution
    dont know where to begin
     
  2. jcsd
  3. Mar 12, 2009 #2
    wow nevermind solved it...

    found Fn first using the N of the crate and sin of the applied force, then i plugged that into

    ma=uFn and found m by dividing 880 by 9.8 then just solved for a
     
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