By means of a rope whose mass is negligible, the two blocks are hanged over a pulley, with m1 = 10.2 kg and m2 = 44.8 kg. The pulley can be treated as a uniform, solid, cylindrical disk. The downward acceleration of block o 44.8 kg is observed to be precisely one-half the acceleration due to gravity. Noting that the tension in the rope is not the similar on each side of the pulley, determine the mass of the pulley.