Question:
A vertical metal cylinder of radius $2 \mathrm{~cm}$ and length $2 \mathrm{~m}$ is fixed at the lower end and a load of $100 \mathrm{~kg}$ is put on it. Find
(a) the stress
(b) the strain and
(c) the compression of the cylinder. Young's modulus of the metal $=2 \times 10^{11} \mathrm{~N} / \mathrm{m}^{2}$
Solution:
