Rigid rods of negligible mass lying along the y axis connect three particles. The system rotates about the x axis with an angular speed of 3.90 rad/s. Find the moment of inertia about the x axis kg * m^2 Find the total rotational kinetic energy evaluated from 1/2 I omega_2. J Find the tangential speed of each particle. 4.00 kg particle m/s 2.00 kg particle m/s 3.00 kg particle m/s Find the total kinetic energy evaluated from sigma 1/2 m_iv_i^2. J Compare the answers for kinetic energy in parts (b) and (d)