- #1
jonjacson
- 447
- 38
Homework Statement
I´ll show the problem with a picture:
Homework Equations
Sum forces = 0 ;
The Attempt at a Solution
Well I tried to solve the forces equations at the joint D, but I see three unkown quantities ED, BD and CD, and I have two equations, one for the X axis, and one for the Y axis so I cannot solve... or that´s what I thought until I saw that the book gives numerical answers to the problem.
So, Anybody knows how to get three unkown quantities from two equations?
I´m not able to do that, and until 5 minutes ago I thought it was impossible.