जब आपको एक बड़े ट्रस (जिसमें कई अवयव हों) के केवल कुछ विशिष्ट अवयवों में बल ज्ञात करने हों, तो कौन सी विधि सबसे उपयुक्त और कम थकाऊ होती 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: