Q1-Determine the new length of Bar have two parts .The first with diameters3 in, length is 1 ft. and E-275GN/m^2.The second have diameter40mm, length 20 cm E=285GN/m^2. Subjected to an axial Compression load 42 KN. And what is the percentage strain? 30 mm - 60 mm - 40 mm 100 mm- 50 mm​