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5. If a roller-coaster car has 40,000 J of gravitational potential energy when at rest on the top of a hill, how much kinetic energy does it have when it is ½ of the way down the hill?
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5. If a roller-coaster car has 40,000 J of gravitational potential energy when at rest on the top of a hill, how much kinetic energy does it have when it is ½ of the way down the hill?

User Kevin Thompson
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See the picture below, feel free to ask questions
5. If a roller-coaster car has 40,000 J of gravitational potential energy when at-example-1
User JonLOo
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