The pulley system in figure below is used to lift a 52-kg, Ask an Expert

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The pulley system in Figure below is used to lift a 52-kg crate. Note that a chain connects the upper pulley to the ceiling and a second chain connects the lower pulley to the crate. Assuming the masses of the chains, pulleys, and ropes are negligible, determine

(a) the force required to lift the crate with constant speed and

(b) the tension in each chain.

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