Where does the factor of 2 come from in Fy=2T2 - 981?

On Radioactive Waves · May 27, 2010

Okay, so I am trying to understand the method of sections so I can finish my homework. I look at http://en.wikibooks.org/wiki/Statics/Method_of_Sections" and for the life of me, I can't understand why at the bottom of the page it says Fy=0=2T2 - 981 .

Where does the factor of 2 come from? Why not just T2? I feel like I am missing something completely obvious. Sorry for the poor notation.

I am posting this here because it is not my homework problem, and there is no work for me to show. I would just appreciate an answer, so I can do my homework. I'm totally missing the bus on this concept right now...

Studiot · May 27, 2010

Yes it is wrong; we have already discussed this.

https://www.physicsforums.com/showthread.php?t=404566

On Radioactive Waves · May 27, 2010

Thanks.

Where does the factor of 2 come from in Fy=2T2 - 981?

Discussion

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