Homework Statement
FIND A FORCE OF A 3-D TRUSS
Homework Equations
ƩFX=0
ƩFY=0
ƩFZ=0
The Attempt at a Solution
I figured out rB(2i,-1j,0), rc(2i,1j,0),rd(1i,0,2k) can you check if my vectors r right. After find the vectors of point B,C,D I calculated the unit vector, not I am...
Homework Statement
Find the force 'p' and angle 'alpha'.
Homework Equations
m=rXf
The Attempt at a Solution
I calculated the couple moment by using M=rXf, I plugged r=12 and f=8 and the answer come out to be 96 lb.m. After finding the couple moment I am stuck now, I could not...