A 50-kg bicyclist coasts up a hill. What is the cyclist change in kinetic energy as her altitude changes from 15m to 20m?
A) 0 joules
B) approximately 2,500 joules
C) approximately 7.500 joules
D) approximately 10.000 joules

B) approximately 2,500 joules

Explanation:

The kinetic energy is transformed into potential energy. So, the increase of potential energy or approximately 2,500 joules is the loss in kinetic energy.

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