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Homework Help: Easy Physics dat i dont understand

  1. Jun 3, 2010 #1
    1. The problem statement, all variables and given/known data
    a 1 ton rollercoaster falls froma top of 100m ramp. how high above the ground is it when it is travelling at 20m/s. assume no friction

    I DONT NO HOW TO START OR WHERE TO START FROM!! PLZ HELP
     
  2. jcsd
  3. Jun 3, 2010 #2

    Cyosis

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    Homework Helper

    Use conversation of energy. I am quite sure it is covered in your book.
     
  4. Jun 3, 2010 #3
    ohh yes THANK YOU!! :)
     
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