On a horizontal axis attached a flywheel and lightweight pulley with radius of 5 cm. On the pulleh is reeled with a cord, to which is hanged a weight with mass of 0.4 kg. Falling with a constant acceleration, the weight passed a distance of 1.8 m in 3 s. Find the moment of inertia of the flywheel, the mass of the flywheel is neglected. The flywheel and the pulley is attached togehter.