Can someone help me with this question? I have been trying to solve it but I cannot find an answer

Part A The spool has a mass of 30 kg and a radius of gyration ko = 0.25 m Block A has a mass of 25 kg, and block B has a mass of 10 kg. They are released from rest as shown in (Figure 1). Assume Determine the time required for block A to attain a speed of 4 m/s. Neglect the mass of the ropes. TA = 0.34 m. Express your answer to three significant figures and include the appropriate units. HA ? t = 0.31 Submit Previous Answers Request Answer X Incorrect; Try Again Figure 0.18 m B A