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Energy change.

  1. May 10, 2010 #1
    Sorry for brief formulation but have no time.

    Cyclist travells down hill, no pedalling.
    Applies breaks at X and stops at Y.

    Which energy changes have taken place between X and Y?

    A. Kinetic --> internal (Heat) ---> Grav potential
    B. Kinetic --> Grav Potential --> Internal heat
    C. Grav Potenial --> Internal (heat) ---> Kinetic.
    D. Grav Potential --> Kinetic ---> Inetnal Heat

    Thank you!!
  2. jcsd
  3. May 10, 2010 #2
    lol are you using your blackberry during a test?
  4. May 10, 2010 #3
    Hahaha no im just doing a Paper and dont have the marking scheme.
    My IGCSE is tomorrow though.
    So maybe thats a good idea ;D
    Anyway know the answer?
  5. May 10, 2010 #4
    Ya but i dont think im suposed to say
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