we know that moment of inertia of a rod about central axis is ML^2/12. Now the rod is bent in 'V' shape a its centre , so that angle between 2 rods is 60 degrees. Cal. the M.I. About the same axis i.e. The vertex. (given ans was= (3)^1/2 x ML^2/24
vishal narote , 12 Years ago
Grade 12