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12_P13InstructorSolution - 12.13 Model The structure is a...

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12.13. Model: The structure is a rigid body rotating about its center of mass. Visualize: We placed the origin of the coordinate system on the 300 g ball. Solve: First, we calculate the center of mass: cm (300 g)(0 cm) (600 g)(40 cm) 26.67 cm 300 g 600 g x + = = + Next, we will calculate the moment of inertia about the structure’s center of mass:
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