Problem A11:
In the figure above a massless rod is attached to a wall with a hinge.
The length of the rod is 10 meters. An object of weight n_{2}
Newtons is hanging by a massless rope from the rod. The rope is attached
a distance of n_{1} meters from the hinge. Another rope is
attached to the right end of the rod, and makes an angle of 30
degrees with respect to the rod. What is the tension in this rope?
If T = n_{3} Newtons, what is n_{3}?

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