The diagram shows a roller-coaster track. Assume that the system is closed.
Point B is the highest point on the track.
B-
E
-D
Which statement describes the potential and kinetic energies of a roller-
coaster car at point B?
O A. Potential energy is at its minimum, and kinetic energy is at its
maximum.
B. Both kinetic energy and potential energy are at their maximums.
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