الحل
Extracted text: A rigid bar AB, pinned at end A, is supported by a wire CD and loaded by a force P at end B as shown in figure. The wire is made of high- strength steel having modulus of elasticity E= 210 GPa. The diameter of the wire is 5mm. Determine the maximum load P that could be applied so that the vetical displacemt at B will not be more than 6 mm. 2 m D P 4 m 2 m