Question: For questions 1 through 4 , consider the truss below loaded with a vertical load of 1 0 k at joint D as shown. Take

For questions 1 through 4, consider the truss below loaded with a vertical load of 10 k at joint D as shown. Take P1 as zero kips, i.e., there is no external applied load in the horizontal direction. The truss is supported at B by a roller at C by an external hinge as shown. The member lengths and some of the real forces are as shown in the accompanying table. Take AE as constant.
The table is employed to compute the vertical deflection at point D.
\table[[Member,Length (in), L,N(k),n(k),NnL],[AB,144,0,,
For questions 1 through 4 , consider the truss

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