## Physics (10th Edition)

We know: Shear modulus, G= Shear stress/Shear strain. This is the same as: Shear strain = Shear stress$\div$ Shear modulus Thus, it follows: = $\frac{8.5\times10^{6}N/m^{2}}{5.0\times10^{9}N/m^{2}}$ = 0.0017