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    Kinetic Energy of a rotating bar

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    A thin, uniform 12.0-kg bar that is 2.00 m long rotates uniformly about a pivot at one end, making 5.00 complete revolutions every 3.00 seconds.

    What is the kinetic energy of this bar? (Hint: Different points in the bar have different speeds. Break the bar up into infinitesimal segments of mass dm and integrate to add up the kinetic energy of all these segments.)

    © BrainMass Inc. brainmass.com March 4, 2021, 6:54 pm ad1c9bdddf
    https://brainmass.com/physics/energy/kinetic-energy-rotating-bar-68524

    Solution Preview

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    SOLUTION
    5 revolutions
    12 kg every 3 sec.
    2m
    ...

    Solution Summary

    Step by step solution provided. The expert determines the kinetic energy of a rotating bar.

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