$2\mathrm{.}39$ Two cylindrical rods, $AC$ made of aluminum and $CD$ made of steel, are joined at $C$ and restrained by rigid supports at $A$

and $D.$ For the loading shown and knowing that $Ea=10\mathrm{.}4106$ psi and $Es=29106,$ determine $($a$)$ the

reactions at A and $D,(b)$ the deflection of point $C.$

$2\mathrm{.}39$ Two cylindrical rods, $AC$ made of aluminum and $CD$ made of steel, are joined at $C$ and restrained by rigid supports at $A$

and $D.$ For the loading shown and knowing that $Ea=10\mathrm{.}4106$ psi and $Es=29106,$ determine $($a$)$ the

reactions at A and $D,(b)$ the deflection of point $C.$