An massless equlateral triangle of side
(As shown in the figure) has three particles of mass
situated at its vertices. The moment of inertia of the system about the line
perpendicular to
in the plane of
is
where
is an integer. The value of
is ________.
Option: 1 5
Option: 2 10
Option: 3 20
Option: 4 25
The moment of inertia of the system about the line passing through EX is
As we know for point mass m at separation r from the axis of rotation is
Point masses separation from the axis of rotation at position E, F & G are 0, a/2, a respectively
comparing with,
N=25
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