Homework Statement
http://i277.photobucket.com/albums/kk63/sarcasticlil123/truss.jpg
Homework Equations
p1=800#, p2= 600# and a=8, determine a reaction load
The Attempt at a Solution
sum Ma=0=-4.5p1-6p2+12.5cy
I am generally lost, this isn't homework its practice for the final...