Help drawing a FBD for the question

[PhysicslyDumb]

Homework Statement

A person is holding onto 2 separate rings and each at angle is 85 degrees. find the tension in each rope. The mass of the person is 70kg. so we know the mass of the person, and the angle of ropes, i should be able to figure it out by looking at a FBD but i don't know how the FBD would look. i just need to know what points should be taken as the square (or the dot) in the FBD, the areas where his hands meet the rings or the areas where the rope attaches to the roof

Homework Equations

The Attempt at a Solution

 

[Spinnor]

It will look like the following link with the appropriate angles supplied by you.

http://library.thinkquest.org/11686/tutorial/full_walkthrough/fbd.html

See also,

http://www.wisc-online.com/Objects/ViewObject.aspx?ID=tp1502

http://www.physicsclassroom.com/class/newtlaws/u2l2c.cfm#1

 

[PhysicslyDumb]

thanks, that helped a lot