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12_P14InstructorSolution

12_P14InstructorSolution - 12.14 Model The moment of...

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12.14. Model: The moment of inertia of any object depends on the axis of rotation. In the present case, the rotation axis passes through mass A and is perpendicular to the page. Visualize: Please refer to Figure EX12.14. Solve: (a) A A B B C C D D cm A B C D A A B B C C D D cm A B C D (100 g)(0 m) (200 g)(0 m) (200 g)(0.10 m) (200 g)(0.10 m) 0.057 m 100 g 200 g 200 g 200 g (100 g)(0 m) (200 g)(0.10 m) (200 g)(0.10 cm) (200 g i i i m x m x m x m x m x x m m m m m m y m y m y m y y m m m m + + + = = + + +
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