Physics-Please help explain

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What happens to a rollercoaster's motion in terms of energy when it goes over a second hill that is higher than the first hill.I think it is because the kinetic energy does not have the momentum so when converted into PE, it can't make it over a higher hill. Coorect or all wrong?
Thanks you

  • Physics-Please help explain -

    correct.

  • Physics-Please help explain -

    Thank you!!

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