पूरे स्पैन पर 3 kN/m के समान रूप से वितरित भार (UDL) के अधीन 4 मीटर लंबी फिक्स्ड बीम के दाहिने सपोर्ट पर फिक्स्ड एंड मोमेंट (fixed end moment) का मान क्या होगा?

What is the value of maximum shear force for a simply supported beam of length 6.0 m, subjected to a uniformly distributed load (w kN/m) throughout the span, for which the bending moment equation at a section from the left support situated at 'x' m is Mx = 30x - 0.5(wx2)?

Method of joints is applicable to calculate member forces of a truss, when the number of unknown forces at the joint under consideration is not more than: