For the truss shown below, the cross$-$sectional area in $"$in$"$ of each member is shown in the figure inside a circle. Take E $=29000$ ksi.

Use the Virtual Work Method.

If the virtual structure is based on a unit$-$force, the absolute value for parameter nNL$//$A for member BF is mostly near

kip$^(2)-$in$/$in $^(2).$

$0$

$700$

$1400$

$3700$

$1800$

$1200.$

ANSWER IS NOT $3700$