A block of mass m, = 43.8 kg on a horizontal surface is connected to a mass m, - 16.6 kg that hangs vertically as shown in the figure below. The two blocks are connected by a string of negligible mass passing over a frictionless pulley, Assume that the horizontal surface is smooth. m1 m2 (a) What is the acceleration (in m/s ) of the hanging mass? (Enter the magnitude only.) m/s2 (b) Determine the tension (in N) in the cord. (Enter the magnitude only.) NThree boxes, A, B, and C, are placed on a frictionless surface as shown in the diagram below. B A C If you push on box A with a force of 8.25 N, find the contact force (in N) between each pair of boxes. Here m. = 6.75 kg, m = 4.15 kg, and mc = 1.50 kg. contact force between A and B N contact force between B and C Supporting Materials