In this article (and video above), I solve a strength of materials question, similar to one you might encounter during the FE Exam, to give you a better understanding of what you can expect during the exam.
A steel bar (E = 200 GPa) is stretched with a force of 50 N. If the bar is 4 m long and has a cross-sectional area of 0.5 square meters , what is the approximate elongation?
(A) 1 nm
(B) 2 nm
(C) 3 nm
(D) 4 nm