Part $A$

Consider the beam shown in $($Figure $1).EI$ is constant Assume that $EI$ is in $kN*m^2.$ Use Castigliano's theorem to solve this problem.

${}_A=$

rad

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Part B

Determine the displacement at point A measured downward.

Express your answer in terms of $E$ and I. Express the coefficients using three significant fig positive value if the displacement is downward and a negative value if the displacement is un

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