what is the relationship between the potential and kinetic energy of an object as in the roller coaster example

Kinetic energy - the energy of motion - is dependent upon the mass of the object and the speed of the object. The train of coaster cars speeds up as they lose height. Thus, their original potential energy (due to their large height) is transformed into kinetic energy (revealed by their high speeds).

Explanation:

i have to go with a for this one

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