Blocks of mass mų and m2 are connected by a massless string that passes over the pulley in the figure (Figure 1). The pulley turns on frictionless bearings, and mass m, slides on a horizontal, frictionless surface. Mass m2 is released while the blocks are at rest. Part A Assume the pulley is massless. Find the acceleration of m1. Express your answer in terms of some or all of the variables m1, m2, and constant g. ? a1 = Figure < 1 of 1 > Part B Find the tension in the string. m, Express your answer in terms of some or all of the variables mı, m2, and constant g. ? T =

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