Four point loads of 8 kN, 15 kN, 15 kN, and 10 kN have a centre-to-centre spacing of 2 m between consecutive loads. They traverse a girder of 30 m span from left to right, with the 10 kN load leading. The maximum shear force at a section 8 m from the left support will be:

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: