Question 7A load of 50N is attached to one end of a long vertical wire of length 4m and diameter 2.4mm whose other end is fixed it the extension is 0.25mm, calculate the Young modulus of the material of the wire. A.18N/m2B.1800N/m2C.180N/m2D.1.8 × 1011N/m²Objective Show full explanation