1.

Body force vector fe = _____________

A. ( frac{A_el_ef}{2} begin{Bmatrix}1 1 end{Bmatrix} )
B. ( frac{A_el_e}{2} begin{Bmatrix}1 1 end{Bmatrix} )
C. A<sub>e</sub>l<sub>e</sub> ( begin{Bmatrix}1 1 end{Bmatrix} )
D. A<sub>e</sub>l<sub>e</sub>f ( begin{Bmatrix}1 1 end{Bmatrix} )
Answer» B. ( frac{A_el_e}{2} begin{Bmatrix}1 1 end{Bmatrix} )


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