A 40-Kg Mass Is Placed at (3

question 2

Multiple Choice

A 4.0-kg mass is placed at (3.0,4.0) m,and a 7.0 kg-mass is placed at (3.0,−4.0) m.What is the moment of inertia of this system of masses about the z axis?

• A) 275 kg·m²
• B) 90 kg·m²
• C) 250 kg·m²
• D) 180 kg·m²

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