The angle is θ = 45.0°. The masses are, for the small pulley, m1 = 3.5 kg, for the traveling pulley, M2 = 6.7 kg, and for the crate, MC = 55.8 kg. What is the minimum tension with which the operator must pull on the cable (assume the cable is of neglible mass) in order to slowly raise the crate.
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We need the diagram,
or you must explain exactly what the arrangement looks like.