PROBS. $1\mathrm{.}2-10$ and $1\mathrm{.}2-11$

Solve Prob. $1\mathrm{.}2-10$ if the load $P=9000lb$; the

cable has effective cross$-$sectional area $A=0\mathrm{.}471in.{?}^2$; the

dimensions of the crane are $H=9ft,L_1=12ft,$ and $L_2=$

$4$ ft ; and the cable stretches by $0\mathrm{.}382$ in $.$