247 - Resultant of couples in a 3-step pulley
Problem 247
The three-step pulley shown in Fig. P-247 is subjected to the given couples. Compute the value of the resultant couple. Also determine the forces acting at the rim of the middle pulley that are required to balance the given system.
![Couples on three-step pulley](http://www.mathalino.com/sites/default/files/images/247-couples-on-step-pulley_0.gif)
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