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phycis

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A roller coaster has two hills and starts from rest atop the first hill , which is the higher of the two hills . The secound hill increases if the height of the initial hill is increased by 20m

  • phycis -

    Your question makes no sense to me.

  • phycis -

    The roller coaster can not make it to the top of the second hill if the first hill is not higher.
    (1/2) m v^2 + m g h = constant

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