The Atwood machine consists of two masses hanging from the ends of a rope that passes over a pulley. Approximate the pulley as a uniform disk with mass my = 4.93 kg and radius re = 0.250 m. The hanging masses are my = 21.5 kg and ME = ILIKE Calculate the magnitude of the masses' acceleration a and the tension in the left and right ends of the rope, 71 and Te , respectively. E m/'s