Embibe Experts Solutions for Chapter: Elasticity, Exercise 1: COMEDK UGET 2015

A crane with a steel cable of length $11 \mathrm{m}$ and radius $2.0 \mathrm{cm}$ is employed to lift a block of concrete of mass $40$ tons in a building site. If the Young's Modulus of steel is $2.0\times {10}^{11} \mathrm{Pa}$, what will be roughly the increase in the length of the cable while lifting the block? (Take $g=10 \mathrm{m} {\mathrm{s}}^{-2}$ )

The dimensions of four wires of the same material are given below. In which wire the increase in length will be maximum when the same tension is applied?