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Math Help - Angular mechanics and radius of gyration problem

  1. #1
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    Angular mechanics and radius of gyration problem (parallel axis theorem?)



    I'm very unfamiliar with this 'radius of gyration', so I just kind of plugged the values in without much awareness.
    I get I = 0.24^2*12.5, with I as the mass moment of inertia.

    Then did
    F= ma, and set equal to the unknown times the distance to the hip flexors
    0.58*18*0.24^2*12.5 = 0.42*x

    then solved for x.
    Is this right, or am I just way off?
    Any help would be appreciated.

    EDIT: Okay, I've got some more information, and I think I'm way off with the second part:


    Last edited by lupy; October 14th 2012 at 02:29 AM.
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