$4-1.$ The copper shaft is sub$-$

jected to the axial loads

shown. Determine the dis$-$

placement of end A with re$-$

spect to end $D.$ The diame$-$

ters of each segment are

$d_{AB}=3$ in$.,d_{BC}=2$ in$.,$ and

$d_{CD}=1$ in$.$ Take

$E_{eu}=18({10}^3)ksi.$

Prob. $4-1$