7.12.Model:The man (M) and the block (B) are interacting with each other through a rope. We will assume the pulley to be frictionless. This assumption implies that the tension in the rope is the same on both sides of the pulley. The system is the man and the block. Visualize:Solve:Clearly the entire system remains in equilibrium since BM.mm>The block would move downward but
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