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    How much do you know about Mechanical Aptitude?

    Two solid disks of the same radius rotate with the same angular velocity. One has twice the mass. Which statement is correct (ideal model)?

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    They both have the same rotational kinetic energy.
    The most massive one has twice the angular momentum and twice the rotational energy.Correct
    The most massive one has half the angular momentum
    Mass does not affect angular momentum

    For a disk: I=(1/2)MR². With ω equal, L=Iω and K=(1/2)Iω² scale linearly with M.

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