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29 September, 23:31

A 500.-kilogram roller coaster starts from rest at the top of an 80.0-meter hill. What is its potential enegy halfway down the hill?

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  1. 29 September, 23:39
    0
    Answer: 392,000 J

    Step-by-step explanation:

    Ep=mgh

    Ep=500 (mass) 9.8 (gravity) 80 (height)

    500•9.8•80=392,000 J
  2. 30 September, 02:32
    0
    the answer is 200kg
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