Which of the following correctly describes the changes in energy for a roller coaster car as it rolls?
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a. kinetic energy increases and potential energy decreases b. kinetic energy decreases and potential energy increases. c. kinetic energy increases and potential energy does not change. d. kinetic energy does not change and potential energy decreases
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Answer:
a. the kinetic energy of motion is incresing bease the coaster is gaining speed and the still energy or potentiol is decreasing beacuse it is being used as kinetic
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Other answers
If it is rolling down a hill and speeding up the answer is a. If it is rolling up a hill and slowing down the answer is b.
RD Padouk
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