Problem $2$ of $2$: $230$ V$,4-$pole, $10$ hp$,60$ Hz$,$ wyeconnected, $3$ induction motor develops its full$-$load induced torque at $3\mathrm{.}8$ percent slip when operating at $60$ Hz and $230$ V$.$ The impedances of the per$-$phase equivalent circuit model are as follows: R $1=0\mathrm{.}36,$ X$1=0\mathrm{.}47,$ XM $=15\mathrm{.}5,$ and X $2=0\mathrm{.}47.$ Mechanical, core, and stray losses may be neglected. $($a$)$ Find the value of rotor resistance, R$2.($b$)$ Find maximum torque, $$ max ; slip at maximum torque, smax ; and rotor speed at maximum torque. $($c$)$ Find starting torque of motor. $($d$)$ What starting code letter should be assigned to this motor?