Determine la inercia rotacional de una varilla de 4 m de largo y 2 Kg de mesa si su eje de rotación esta situado a la mitad de la varilla.

Question

Determine la inercia rotacional de una varilla de 4 m de largo y 2 Kg de mesa si su eje de rotación esta situado a la mitad de la varilla.

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Nho 6 months 2021-07-27T08:26:41+00:00 1 Answers 7 views 0

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    2021-07-27T08:28:07+00:00

    Answer:

       I = 2.667 kg m²

    Explanation:

    The moment of inertia of a body can be calculated by the expression

             I = ∫ L² dm

    For high symmetry bodies the expressions of the moment of inertia are tabulated, for a rod with its axis of rotation at its midpoint it is

             I = \frac{1}{12} m L²

    let’s calculate

             I = \frac{1}{12}  2  4²

             I = 2.667 kg m²

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Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )