समान स्पैन वाले सरलीकृत समर्थित बीम (simply supported beams) की तुलना में एक सतत बीम (continuous beam) का मुख्य संरचनात्मक लाभ क्या है?

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: