There 1.2 kg masses are located at the vertices of an equilateral triangle
Channel: Doubtnut
Date: 2020-04-12

There 1.2 kg masses are located at the vertices of an equilateral triangle 40 cm on a side made by rods of negligible mass. Find the rotational inertia of this system about an axis through the centre of the triangle and perpendicular to its plane.