Al alloy with yield srtess is 75 MPa ,tinsile strength 180 Mpa ,E moduels is 70 GPa Ni alloy yield srtess is 200 MPa ,tinsile strength 400 Mpa ,E moduels is 200 GPa

In a forming operation, a rod with a cross sectional area of 1 cm should be elongated by plastic deformation. The maximum tensile load the machine can apply is 25000 N. Which of the metals in the table can be elongated until fracture by the machine?

a.Al b. Ni