- #1
bnosam
- 148
- 0
Homework Statement
http://oi59.tinypic.com/2h65cm1.jpg[/B]
Homework Equations
The Attempt at a Solution
[/B]
All triangles: angles A = B = 53.13 degrees, angle C = 73.74 degrees
from cosine law and the 180 degree ruleBut it looks like all of the joints in the bridge have more than 2 forces? Which joint should I start at?
I was going to start at B but it looks like i have the 3000 lb force, then BC, BE and BA forces which would be too many.