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Question: Three point masses m1, m2, m3 are located at the vertices of an dquilateral triangle of lenght 'a'. ...

Three point masses m1, m2, m3 are located at the vertices of an dquilateral triangle of lenght 'a'. The moment of inertia of the system about an axis along the altitude of the triangle passing through m1, is:

A
B
C

(m1+m2)a24\left( \mathrm { m } _ { 1 } + \mathrm { m } _ { 2 } \right) \frac { \mathrm { a } ^ { 2 } } { 4 }

D
Answer
Explanation

Solution

M.I. of system about the axis which passing though m1