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The boundary condition equation for Z, where Z is the component of the surface force in z-direction per unit area is ___________

The boundary condition equation for Z, where Z is the component of the surface force in z-direction per unit area is ___________ Correct Answer Z = σz n+τzx l+τzy m

Let the area of ABC=ds. area OBC=ds cos(N,x)=ds.l area OAB=ds cos(N,y)=ds.m area OAC=ds cos(N,z)=ds.n Resolving all the forces in z-direction and equating them to zero, we get, Z = σz n+τzx l+τzy m.

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