A metallic plate of width w and thickness t is subjected to a uniform axial force P as s...

A metallic plate of width w and thickness t is subjected to a uniform axial force P as shown in Fig. P2.34. Two strain gages placed at point A measure the strains  and at 30° and 60°, respectively, to the axis of the plate. Calculate (a) the normal strains   (b) the normal strains and (c) the shearing strain . Given: w=60 mm, t=6 mm, E=200 GPa, v=0.3, and P=25 kN.