OpenStudy (destinymasha):
Which describes the relationship between potential and kinetic energy when a pole vaulter's pole has reached its maximum bend point? A. All the energy is gravitational kinetic energy, and none of the energy is potential energy. B. All the energy is gravitational potential energy, and none of the energy is kinetic energy. C. All the energy is elastic potential energy, and none of the energy is kinetic energy. D. All the energy is elastic kinetic energy, and none of the energy is potential energy.
OpenStudy (anonymous):
It is obviously potential energy because it is "stored." The release of the bend is what "transfers" the potential to the kinetic. It seems safe to say that since gravity is not the only force working on the pole vaulter then we can easily exclude A and B. Since we know we have potential energy this leaves C as the logical conclusion.
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