The angle is θ = 55.0°. The masses are, for the small pulley, m1 = 3.1 kg, for the traveling pulley, M2 = 5.7 kg, and for the crate, MC = 41.0 kg. What is the minimum tension with which the operator must pull on the cable (assume the cable is of negligible mass) in order to slowly raise the crate.(adsbygoogle = window.adsbygoogle || []).push({});

Please see the figure: http://i92.photobucket.com/albums/l18/bonbons06/prob93_upmass2pulleys.gif

My book shows an example of the equation:

2 x F(T) - mg = ma

I'm not sure if that's the equation to use and if it is, how do I apply it?

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# Homework Help: Pulley System and Tension

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