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Find energy lost due to friction, and final speed of block.

  1. Sep 15, 2014 #1
    1. The problem statement, all variables and given/known data
    a 28kg block starts at rest and slides down the incline ramp which is at an angle of 20 degrees up from the horizontal. the coefficient of kinetic friction between the incline and the block is 0.22. The height of the ramp is 2.5m. How much energy was lost to friction as the blocks slid down the ramp? What is the final speed of the block when it reaches the bottom of the ramp?


    2. Relevant equations



    3. The attempt at a solution
    Please help I dont even know how to start
     
  2. jcsd
  3. Sep 16, 2014 #2

    CWatters

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    hint: Whats the commonly used equation for work?
     
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