The determination of the truss’s support reaction is done first and then the section is isolated for the method of the section.
(a) The first step is right but the second one is wrong
(b) The first step is wrong and the second one is wrong too
(c) The first step is right and the second one is right too
(d) The first step is wrong but the second one is right
This question was addressed to me in examination.
My question comes from Method of Sections topic in division Structural Analysis of Engineering Mechanics