Asked by MM

The picture shows a two-dimensional free body diagram of a truss with a pin joint at one end.
The free body diagram at the pin joint should show:
a. no forces at the joint
b. only parallel force component
c. only perpendicular force component
d. both parallel and force components

(I think it is d?)
Answered by bobpursley
yep, but in reality, a pin joint can have torsion also. I assume you forgot to type parallel AND PERPENDICULAR force
Answered by Trease
The answer is c
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