Problem $1\mathrm{.}7$

Problem Statement: A plate with a width change is subjected to a tension load as in Fig. A$\mathrm{.}11($c$).$ The tension load is $P=3800N,$ and the dimensions are $w_2=30,w_1=14,$ and $t=6\mathrm{.}0mm.$ It is made of a polycarbonate plastic with yield strength ${}_0=65$MPa. What is the safety factor against large amounts of deformation occurring in the plate due to yielding? Does the value seem adequate? $($Comment: Note that the stress units MPA$=\frac{N}{m}{m}^2.)$