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15 January, 13:31

A roller coaster needs to climb a tall hill. How tall of a hill can it climb with an initial

speed of 15 m. s.

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Answers (1)
  1. 15 January, 14:34
    0
    h = 11.25m

    Explanation:

    mgh = 1/2mv2

    gh = 1/2v2

    10 x h = 1/2 x 15 x 15

    20 x h = 225

    h = 225/20

    h = 11.25m
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