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JEE Main20203 Sep 2020Evening ShiftPhysicsRotational MotionActual

An massless equilateral triangle EFG of side 'a' (As shown in figure) has three particles of mass m situated at its vertices. The moment of inertia of the system about the line EX perpendicular to EG in the plane of EFG is N 20 ma 2 where N is an integer. The value of N is ___________ .

Correct answer

0

Step-by-step solution

I = m × O 2 + ma 2 + m a 2 2 = 5 4 ma 2 = 25 20 ma 2 N = 25

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