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Car moving up Inclined Plane question

  1. Mar 8, 2014 #1
    My question and attempted solution are in the pics below...not sure if what I did was correct though :/

    I was thinking that the work done would have been equal to PE+Change in KE + Energy Lost to friction...but not sure how to calculate the energy lost to friction as i'm not sure if it has to be calculated in a specific form eg heat
     

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    Last edited: Mar 8, 2014
  2. jcsd
  3. Mar 9, 2014 #2

    NascentOxygen

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    Staff: Mentor

    Work performed by a force = magnitude of the force x distance moved in the precise direction of that force. The energy expended will probably mostly end up as heat, but that is not important here.
     
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