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Naureen of the Earth
Lv 4
Naureen of the Earth asked in Science & MathematicsPhysics · 6 years ago

Physics rotational inertia question?

What happens to the rotational inertia of a rod with 2 masses attached if the masses are moved from the center of the rod to one on each end?

1 Answer

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    Lv 7
    6 years ago
    Favorite Answer

    Assuming the rotation is about the center of the rod, it increases from

    I = ML²/12

    to

    I = ML²/12 + mL/2

    where M is the mass of the rod

    and L is its length

    and m is each attached mass.

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