L'urrent Attempt In Progress In the gure here three ballot boxes are connected by cords, one of which wraps over a pulley having negligible friction on its axle and negligible mass. The masses are mA = 26 kg, m; = 42 kg, and m; = 13 kg. When the assembly is released from rest, (a) what is the tension in the cord connecting B and C, and (b) how far doesA move in the rst 0.200 5 (assuming it does not reach the pulley)? Assume the table surface frictionless. 1} (a) Number a Unit (b) Number a Unit 1}