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Conservation of energy problem dealing with a frictionless pulley

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A system containing a frictionless pulley is described in the diagram (see question attachment). If this system is released, at what speed does the 12.0 kg object hit the floor? HINT: Does the 12.0 kg object undergo free fall? Why or why not?

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The conservation of energy problem dealing with frictionless pulley are examined. A system releasing a frictionless pulley is examined for an object.

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The 12.0kg object does not undergo free fall because once it drags the 6.0kg object off the ground it will have to overcome the weight of the 6.0kg object and ...

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