A simple mechanics problem, please help

  • Thread starter stephen
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  • #1
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http://hk.pg.photos.yahoo.com/ph/good_students/detail?.dir=7712&.dnm=7c7f.jpg [Broken]

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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Answers and Replies

  • #2
1,789
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Sorry mate...couldn't see your diagram (it doesn't show up).
 
  • #3
Chi Meson
Science Advisor
Homework Helper
1,807
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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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