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Homework Help: Car stopping at top of hill

  1. Jan 26, 2012 #1
    1. The problem statement, all variables and given/known data

    A car traveling at 24.0m/s runs out of gas while traveling up a 20.0degree slope.
    How far up the hill will it coast before starting to roll back down?

    2. Relevant equations

    Vf^2=Vi^2-2a(g*sin(20)(Xf-X0)

    3. The attempt at a solution

    I dont know if that is correct formula but I dont know how to solve for Xf
     
  2. jcsd
  3. Jan 26, 2012 #2

    mukundpa

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    Homework Helper

    Yes you may solve using this formula
     
  4. Jan 26, 2012 #3
    when i enter in sin(20) my calculator is .34 is that on track? it doesnt seem right
     
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