Solving a Mechanics Problem: Equilibrium and Tension in a 160kg Box

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The discussion centers on calculating the tension required to maintain equilibrium for a 160kg box. The consensus is that the tension (P) must equal the weight of the box, which is 1600N, given that only two forces act on the box. This conclusion is based on the principle that in a state of equilibrium, the sum of forces must equal zero, thus the tension must counterbalance the weight of the box.

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http://hk.pg.photos.yahoo.com/ph/good_students/detail?.dir=7712&.dnm=7c7f.jpg

What should be the value of P to maintain the system in equilibrium?
If we just consider the free body diagram of the 160kg box, should the tension be 1600N?(Because there are only 2 forces acting on the box only)
Could any people please help?
 
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Sorry mate...couldn't see your diagram (it doesn't show up).
 
I could not see it either, but according to what you said, you are correct:

IF there are only two forces on an object, and one of them is weight, then the other must be equal to the weight if the object is in equilibrium.
 

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