The pulley system shown in the figure (Figure 1) is used to lift a 52-kg crate. Note that one chain connects the upper pulley to the ceiling and a second chain connects the lower pulley to the crate. The crate is rising with an acceleration of 2.6 m/s2.

a) Assuming the masses of the chains, pulleys, and ropes are negligible, determine the magnitude of the force F→.

b) Determine the tension in the upper chain.

c) Determine the tension in the lower chain.


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