Answer Happy

SHOW YOUR COMPLETE SOLUTION DO NOT COPY THE OTHER answers
EXPERT!
Knowing that the average normal stress in member EF of the Pratt bridge truss shown must not exceed 8.92 ksi for the given loading, determine the cross-sectional area (in sq. in) of this member that will yield the most economical and safe design if h = 10.4 ft and P = 98.1 kips. Round off the answer to five decimal places. 010.png B D F h н! AQ C E G |9f 9ft- -9 ft -9 ft P P P P Р