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Hi! I am having trouble with this frame. To make a long story short, I did the problem and got the right answer. The issue is that when I wanted to try solving the problem by exploding the structure into individual members, I couldn't get an answer anymore and it's bothering me because I do not understand why it would not work. Please refer to the attachment.

I did not get very far. I simply exploded the structure and looked at the 2 force members DE and CD (I put the 700N on one of them) and tried solving ∑Fx=0 and ∑Fy=0

For member CD:

∑Fx: Cx-Dx=0 -> Cx=Dx -> C(cos45°)=D(cos45°) -> C=D

∑Fy: Cy-Dy-700N=0 -> C(sin45°)-D(sin45°)=700N -> (replace above equation here)

C(sin45°)-C(sin45°)=700N -> 0=700N ?

## Homework Statement

## Homework Equations

## The Attempt at a Solution

I did not get very far. I simply exploded the structure and looked at the 2 force members DE and CD (I put the 700N on one of them) and tried solving ∑Fx=0 and ∑Fy=0

For member CD:

∑Fx: Cx-Dx=0 -> Cx=Dx -> C(cos45°)=D(cos45°) -> C=D

∑Fy: Cy-Dy-700N=0 -> C(sin45°)-D(sin45°)=700N -> (replace above equation here)

C(sin45°)-C(sin45°)=700N -> 0=700N ?

#### Attachments

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