MHT CET 2024 Physics question
Three point masses, each of mass 'm' are placed at the corners of an equilateral triangle of side 'L'. The moment of inertia of the system about an axis passing through one of the vertices and parallel to the side joining other two vertices will be
Answer: (C)
Solution
The axis passes through one vertex, so that mass lies on the axis and contributes zero. The axis is parallel to the opposite side, so each of the other two masses is at a perpendicular distance equal to the altitude of the triangle, $h =
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