Two identical rods $\backslash ($ A B $\backslash )$ and $\backslash ($ C D $\backslash )$ each have a length $\backslash ($ L $\backslash )$ and diameter $\backslash ($ d $\backslash ),$ and are used to support the rigid beam, which is pinned at $\backslash ($ E $\backslash ).$ A vertical force $\backslash (\backslash$mathbf$\{$P$\}\backslash )$ is applied to the beam as shown in $($Figure $1).$ The rods are made of material that has a modulus of elasticity of $\backslash ($ E $\backslash ).$

Determine the normal stress developed in rod $\backslash ($ A B $\backslash ).$

Express your answer in terms of some, all, or none of the variables $\backslash ($ P$,$ a$,$ E$,$ d$,$ L $\backslash ),$ and the constant $\backslash (\backslash$pi $\backslash ).$

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Your answer either contains an incorrect numerical multiplier or is missing one.

Part B

Determine the normal stress developed in rod $\backslash ($ C D $\backslash ).$

Express your answer in terms of some, all, or none of the variables $\backslash ($ P$,$ a$,$ E$,$ d$,$ L $\backslash ),$ and the constant $\backslash (\backslash$pi $\backslash ).$

$\backslash [$

$\backslash$sigma$\_\{$C D$\}=\backslash$square

$\backslash ]$

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