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Before the uniformly distributed load $w$ is applied, a gap, ${}_0=1\mathrm{.}2mm,$ exists between the ends of the cantilever bars $AB$ and $CD.$ Know that $E=125$GPa and $w=30k\frac{N}{m}.$

NOTE: This is a multi$-$part question. Once an answer is submitted, you will be unable to return to this part.

Determine the reaction at $D.$

The reaction RD is $$ kN$.$

The reaction $M_D$ is $$ kN$-$m$.0$