Problem 1.294

A steel wire of diameter $d=1.0 \mathrm{~mm}$ is stretched horizontally between two clamps located at the distance $l=2.0 \mathrm{~m}$ from each other. A weight of mass $m=0.25 \mathrm{~kg}$ is suspended from the midpoint $O$ of the wire. What will the resulting descent of the point $O$ be in centimetres?