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Inclined plane problem with friction

  1. Oct 16, 2016 #1
    1. The problem statement, all variables and given/known data
    During a flume ride the boat plunges 54 feet down a 43 degree incline. Assuming coefficient of friction .12 determine the acceleration of the boat.



    2. Relevant equations
    I'm really not sure, no mass is given or force. All of the equation I know involve mass or force.

    3. The attempt at a solution
    Im not even sure how to find horizontal or vertical components without mass. Acceleration due to gravity is 9.8 m/s^2. Used tangent to find the sides of the triangle. So I'm stuck, no idea where to even start. Really appreciate any suggestions.
     
  2. jcsd
  3. Oct 16, 2016 #2

    gneill

    User Avatar

    Staff: Mentor

    Apply your usual formulas with mass included, leaving the mass as a variable. You should find that it cancels out along the way (so you didn't really need it after all).
     
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