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295_Problem CHAPTER 9 - PROBLEM 9.194 For the 2-kg...

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PROBLEM 9.194 For the 2-kg connecting rod shown, it has been experimentally determined that the mass moments of inertia of the rod with respect to the center-line axes of the bearings AA and BB are, respectively, 2 78 gm AA I = and 2 41 gm BB I = . Knowing that 290 mm a b r r + = , determine ( a ) the location of the centroidal axis GG ( b ) the radius of gyration with respect to axis GG SOLUTION (a) Have 2 290 mm AA GG a a b I I mr r r = + + = 0.29 m = and 2 BB GG b I I mr = + Subtracting ( ) 2 2 BB AA b a I I m r r = ( ) ( )( ) 2 41 78 g m (2000 g)
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