PHYSICS · Subjective · CBSE · Physics · System of Particles and Rotational Motion · System of Particles and Rotational Motion
Problem
Three identical point masses, each of mass m, are rigidly connected to form an equilateral triangle of side length L. The assembly rotates at constant angular speed ω about an axis that passes through the triangle’s center and is perpendicular to its plane. Calculate the rotational kinetic energy of the system in terms of m, L, and ω.