# Shear stress in beam formula

1. Nov 4, 2016

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 ?

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2. Nov 4, 2016

### PhanthomJay

The highest shear is at the right end so that controls the design p

3. Nov 4, 2016