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3 October, 21:22

A 10-kg disk-shaped flywheel of radius 9.0 cm rotates with a rotational speed of 320 rad/s. part a determine the rotational momentum of the flywheel.

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  1. 3 October, 22:49
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    The solution for the rotational flywheel is:

    L = I x ω

    But we need to solve for l first, the computation is:

    I = 1/2 m r^2 = 1/2 (10) (0.090^2) = 0.0405 kg*m^2

    ω = 320 rad/s

    So plugging in the information above, will give us:

    L = 0.0405 * 320 = 12.96 kg*m^2/s or about 13 kg*m^2/s
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