(Solved):
Figure 3 3. A symmetrical truss is shown in Figure 3. If \( P=80 \) kips, determine the following: ...
Figure 3 3. A symmetrical truss is shown in Figure 3. If \( P=80 \) kips, determine the following: a. The average normal stress in member \( \mathrm{BE} \), cross sectional area of \( \mathrm{BE}=6 \operatorname{in}^{2} \) (5 pts) b. The area required in member \( \mathrm{FD} \) if the allowable stress is \( 30 \mathrm{ksi} \) (5 pts)