$3-18.$E A rectangular plastic link in an office printer is to be made from glass$-$filled acetal copolymer $($see Appendix A$-20).$ It is to carry a tensile force of $110$ lb $.$ Space limitations permit a maximum thickness for the link of $0\mathrm{.}20$ in $.$ Specify a suitable width of the link if a design factor of $8$ based on the tensile strength of the plastic is expected.