A load of bricks with mass = 15.6 hangs from one end of a rope that passes over a small, frictionless pulley. A counterweight of mass = 27.2 is suspended from the other end of the rope, as shown in the figure. The system is released from rest. Use = 9.80 for the magnitude of the acceleration due to gravity. What is the magnitude of the upward acceleration of the load of bricks?