InterviewSolution
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InterviewSolution
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Three point masses `m_(1), m_(2)` and `m_(3)` are located at the vertices of an equilateral triangle of side `alpha`. What is the moment of inertia of the system about an axis along the altitude of the triangle passing through `m_(1)?`A. `(m_(1)+m_(2)+m_(3))a^(2)`B. `((m_(2)+m_(3))a^(2))/6`C. `((m_(2)+m_(3))^(2)a^(2))/2`D. `((m_(2)+m_(3))a^(2))/4` |
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Answer» Correct Answer - D `I=summr^(2), r_(1)=0,r_(2)=r_(3)=a/2` |
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