If dd $=2\mathrm{.}5$ mm$,$ and $=30,$ determine the normal reaction at the smooth support AA if PP $=850$ NN$.$ Neglect the weight of the bar.Determine the required distance aa for the placement of the roller.

Express your answer using three significant figures and include the appropriate units.

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a$=$ Part C

Determine the required distance $\backslash ($ a $\backslash )$ for the placement of the roller.

Express your answer using three significant figures and include the appropriate units.

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a$=$

$\backslash ]$

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