5) For the section of a beam illustrated where F = -++ kN and F = - 2 kN. F3 2i (a) Calulate the components of the vector tdA? (b) What is the value of the force corrresponding to the normal stress considering the coordinate system given? (c) The cube of material is 10-2x10-2 m, calculate the average normal stress. (d) Calculate the average shear stress in the z direction? (e) Will there be shear stress in the y direction? F2 N x F3 dA tdA odA =dA