Two solid vertical cylindrical rods $AB$ and $BC$ made of two different materials are

welded together at $B$ and hang down from a fixed support at $C$ as shown below. End

$A$ is free, a vertically upward force of $43\mathrm{.}5$ kip acts at $B,$ and the weights of the rods

can be neglected. The lengths, areas of cross$-$section, and moduli of elasticity of the

two rods are given on the figure

Determine the magnitude of the axial deformation at end A and enter it in in$.($inches$)$

correct to $3$ significant digits below. Note that the magnitude of axial deformation

should be a positive number.

fixed support

Bar BC $($brass$)$:

Area $=25$ in $\backslash$

E$=15000$ ksi

$\backslash$sigmay$\}=11\backslash$textrm$\{$ksi

$\mathrm{.}5$ kip

$\frac{\text{B}\text{a}\text{r}AB(\text{s}\text{t}\text{e}\text{e}\text{l})\text{:}}{\text{A}\text{r}\text{e}\text{a}}=12i{n}^2$

$E=29000$ksi

${}_y=102$ksi