Three blocks are connected by a massless rope that passes over massless pulleys as shown in the figure. The mass of block A is 1.4 kg, the mass of block B is 2.5 kg of block C is 3.1 kg. As block B slides across the horizontal surface energy is dissipated at a rate of 6 J/m due to friction. What is the magnitude of the acceleration m/s²)? A B C
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