Determine "Strain" in rope $\backslash (\backslash$mathbf$\{$A C$\}\backslash )$ and $\backslash (\backslash$mathbf$\{$A B$\}\backslash ),$ when a force $"\backslash (\backslash$mathbf$\{$P$\}\backslash )"$ of $65$ N is applied. Rope $"$ AB $"$ and $"$ AC $"$ are made of a special type of biopolymer material with an elastic modulus $"\backslash (\backslash$mathbf$\{$E$\}=35\backslash$mathrm$\{$GPa$\}\backslash )".$ The diameter of rope $"$ AB $"$ is $\backslash (\backslash$mathbf$\{4.5\}\backslash )\backslash (\backslash$mathbf$\{$m m$\}\backslash )$ and diameter of $"$ AC $"$ is $\backslash (\backslash$mathbf$\{8.25\}\backslash$mathbf$\{$~ m m$\}\backslash ).$