SET B: Determine the Vertical Deflection at point E$,$

$E=70$GPa,$A_{\text{i}\text{n}\text{t}\text{e}\text{r}\text{n}\text{a}\text{l}}=2000m{m}^2,A_{\text{b}\text{u}\text{t}\text{e}\text{r}\text{n}\text{a}\text{l}}=2400m{m}^2.$ Distances are in meters. Show complete Solutions. Use $2$ decimal places for the final answer

A

B

C$.$