Question: The nodal coordinates and corresponding displacements in a plane triangular element are given in the table below. Calculate the (u) displacement at a point given
The nodal coordinates and corresponding displacements in a plane triangular element are given in the table below. Calculate the \(u\) displacement at a point given by \((1,1)\).

Node number (x,y) (mm) u (mm) v (mm) 1 (0,0) 0 0 2 (3,0) 1 1 3 (0,3) 2 0
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