고체역학 (Gere) — Tension, Compression, and Shear: Problem 1.3-13

1.3-13 A space truss has three-dimensional pin supports at joints O, B, and C. Load P is applied at joint A and acts toward point Q. Coordinates of all joints are given in meters (see figure). (a) Find reaction force components \(B_x\), \(B_z\), and \(O_z\). (b) Find the axial force in truss member AC.