Energy Changes of Cyclist: X to Y

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The discussion focuses on the energy changes experienced by a cyclist traveling downhill, applying brakes to stop. Participants analyze various energy transformations, including kinetic energy, gravitational potential energy, and internal heat. The cyclist's motion involves converting gravitational potential energy into kinetic energy and then into internal heat upon braking. The conversation also touches on the urgency of preparing for an upcoming IGCSE exam. Ultimately, the key energy transformation discussed is the conversion of kinetic energy to internal heat as the cyclist stops.
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Sorry for brief formulation but have no time.

Cyclist travels 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!
 
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lol are you using your blackberry during a test?
 
Hahaha no I am just doing a Paper and don't have the marking scheme.
My IGCSE is tomorrow though.
So maybe that's a good idea ;D
Anyway know the answer?
 
Ya but i don't think I am suposed to say
 

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