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9) A point mass of 3 kg is placed at x = -7 m, y =...

9) A point mass of 3 kg is placed at x = -7 m, y = 0 m, a point mass of 9 kg is placed at x = 0 m, y = +4 m, a point mass of 4 kg is placed at x = 0 m, y = -6 m. What is the moment of inertia about the x axis in kg m2?

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