Bar (1) has a length of l1 = 2.50 m, and bar (2) has a length of l2 = 0.65 m. initially, there is a gap of d = 3.5 mm between the rigid plate at b and bar (2). after application of the loads p to the rigid plate at b, the rigid plate moved to the right, stretching bar (1) and compressing bar (2). the normal strain in bar (1) was measured as 2,740 μm/m after the loads p were applied. determine the normal strain produced in bar (2).