3.2 (SI Units) During a tensile test, the starting gauge length = 100.0 mm and the cross-sectional area = 150 mm^2. During testing, the following force and gauge length data are collected: (1) 17,790 N at 100.2 mm, (2) 23,040 N at 103.5 mm, (3) 27,370 N at 110.5 mm, (4) 28,910 N at 122.0 mm, (5) 27,400 N at 130.0 mm, and (6) 20,460 N at 135.1 mm. The final data point (6) occurred coefficient = 500 MPa. Determine (a) flow stress at a true strain = 1.0 and (b) true strain at a flow stress = 500 MPa.