F = 44,500 N

Strain = ?

Length = 19.1 mm, Breath = 15.2 mm

Area = A = 19.1 × 15.2 × 10^{-6}m^{2}

= 2.98 × 10^{-4} m^{2}

G = 42 × 10^{9} Nm^{-2}

We have, G = \(\frac{F}{A \times strain}\)

∴ Strain = \(\frac {F}{G \times A}\)

\(= \frac{44,500}{2.98 \times 10^{-4} \times 42 \times 10^{9}}\)

= 3.65 × 10^{-3}.