For the beams shown in Figs. 1 and 2, determine: 1. Plane stress state 2. Principal stresses 3. Maximum in-plane she ar stress state with corresponding 4. Plot ALL stress st ates above 5. Plot Mohr Circle for ALL stress st ates above 12 kN/m Line 1 Line 2 Line 3 1.4 m 1.9 m 2.8 m Fig. 1 Simply-Supported Beam 12 kN/m Line 1 Line 2 Line 3 10 1.4 m 1.9 m 2.8 m Fig. 2 Cantilever Beam 200 mm 25 mm Line 1 125 mm Line 2 -250 mm 30 mm Line 3 25 mm 100 mm Fig. 3 Cross-Section