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science (physics)

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a skaterboarder is moving 5.25 m/s when he starts to roll up a frictionless hill. how much higher is he when he comes to a stop? (energy problem)

  • science (physics) -

    all the KE (1/2 mv^2) is converted to PE (mgh) So,

    1/2 mv^2 = mgh
    v^2 = 2gh
    h = v^2/2g

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