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    DJ2230's Avatar
    DJ2230 Posts: 1, Reputation: 1
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    #1

    Jan 24, 2012, 05:19 PM
    Kinetic Energy
    A 1kg ball is hitting the ground with 850 Joules of kinetic energy. How high will it bounce?
    Aurora2000's Avatar
    Aurora2000 Posts: 111, Reputation: 16
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    #2

    Jan 25, 2012, 02:38 AM
    The ball has 850J of kinetic energy, thus it converts all this energy into potential energy when boucing back. The potential energy at height h is mgh (m is the mass, here 1kg, g the gravitational acceleration) and solve

    with problem's data.
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