1. The problem statement, all variables and given/known data In this notes , why the shear force used is the 19.5kN ? Why not 6.5kN ? From what i know , the formula of shear stress is tau = VQ/ It , where V is the shear force ..... There are two values of V in this question , why the larger one (19.5kN ) is chosen ? 2. Relevant equations 3. The attempt at a solution Is it wrong ? or the 19.5KN is chosen for the shear force at the right end ? While 8.5kN is chosen for the shear force at right end ?