'Want to use the conservation of energy to solve part B, if possible If not, please let me know why

IP Atwood's Machine The two masses (m1 = 5.5 kg and m2 = 2.5 kg ) in the Atwood's machine shown in The Figureare released from rest, with m1 at a height of 0.55 m above the floor. When m1 hits the ground its speed is 1.6 ' _ _ _ _ _ ' m/s .(Egure 1) Essay answers are limited to about 500 words (3800 characters maXImum, Including spaces). Assuming that the pulley is a uniform disk with a radius of 12 cm, outline a strategy that allows you to find the mass of the pulley. 3800 Character(s) remaining Submit R_equest Answer V PartB Implement the strategy given in partA and determine the pulley's mass. Express your answer using two significant figures. 00-? Figure 1 of 1 Erma m Previous Answers Request Answer X Incorrect; Try Again; 2 attempts remaining 0*\" urn Provide Feed back