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Homework Help: Kinetic Friction with an upward shove

  1. Mar 5, 2009 #1
    1. The problem statement, all variables and given/known data
    In the figure below, the coefficient of kinetic friction between the block and inclined plane is 0.17 and angle θ = 55°. What is the block's acceleration (magnitude and direction) assuming the following conditions? (b) It has been given an upward shove and is still sliding up the slope.
    I also figured out that the accelertaion (magnitude and direction) when it is sliding down. That answer is 7.079 m/s^2


    2. Relevant equations



    3. The attempt at a solution

    I've tried 8.036 & 7.079 m/s^2. Both were incorrect :(
     
  2. jcsd
  3. Mar 5, 2009 #2

    alphysicist

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    Homework Helper

    Hi lauriecherie,


    What did you do to get those answers?
     
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