Here is a problem I have to solve(adsbygoogle = window.adsbygoogle || []).push({});

http://myfiles.dyndns.org/pictures/statics9-2.png

The loadWis 1250lbs. The force exerted by the hydraulic thing GJ is 0 which makes HF a 2 force member.

What I am supposed to do issolve for the tension in spring DE

I just can't seem to get an answer for this problem. In all, there are 6 variables: Ax, Ay, Bx, By, ED, and FH.

So far I have tried 2 ways:

1. Create 6 equations to solve for the 6 variables. Every equation shows the sum of moments around a certain point for a certain member. My 6 equations were for the moments acting on A on ABC, where W is on ABC, B on ABC, B on BEF, E on BEF, F on BEF. When the 6 equations were put into a matrix on my calculator, the calculator could not get an answer. It gives answers like 1Ax - 18By = 1245451 and things like that; it doens't simplify it down to express only 1 variable.

2. Create 4 equations for member ABC to solve for the forces on ABC then work on BEF after. The equations were for moments acting on A, W, B and C. The equations were put into a matrix on my calculator. The calculator again could not get an answer for any variable.

Does anybody have an idea on how to approach this question?

**Physics Forums | Science Articles, Homework Help, Discussion**

Dismiss Notice

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Homework Help: Static equilibrium problem: please help

**Physics Forums | Science Articles, Homework Help, Discussion**