Question

The guitar string wire in item 2 was 1.60 m long with a diameter of 0.20 cm. Approximately what tension force would break it?

Answer 1

Typical music wire has a UTS ~ 2.7 GPa.

$\sigma_{max}=F/A\to F=\sigma_{max}A=2.7\cdot10^{9}\cdot3.14\cdot0.002^2/4=8482\ (N)$ . Answer