Question 2) Three identical thin rods, each of mass m and length l are joint to form an equilateral triangle. As shown in the figure, it rotates with a constant angular velocity relative to the axis passing through the vertex of the triangle. Find the rotational kinetic energy in terms of the given ones. The moment of inertia about the axis passing through the enter of a rod of mass m and length l is, l=121ml2. ml22 B) 67ml22 C) 41ml22 D) 25ml22 E) ml22