TS EAMCET 19-July-2022 Shift 1 Solved Paper

An object of mass 15kg is attached to the end of a metal wire of unstretched length 1.0m. The object is then whirled in a vertical circle with an angular velocity of 4rad∕s at the bottom of the circle. If the cross sectional area of the wire is 0.05cm2 and Young's modulus of metal is 2×1011N∕m2, then the elongation of the wire when the mass is at the lowest point of its path
(Take g=10m∕s2 )