CAEE $325$

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B$.$ For questions $5$ through $8,$ consider the frame shown below, supported with a fixed end at $1.$ Dhe frame is loaded with the uniformly distributed load applied from $B$ to $C.$ Let $E=29,000$ksi and I : $150$ in $4.$ The questions suppose you are determining the vertical deflection at $C.$

$5.$ With the origin at $C$ and $x_1$ increasing as one travels left along the beam towards $B,$ write the moment equation, $M,$ for the real structure $($the one shown$).$ Use $-150x_1-300x_1^2-150x_1^{2}mC-x_2-5x_2^2(a)50,000(b)750,0001,875,C_0$ and units $of$ pound$-$feet.

$(a)0$

$(b)-10$

$(c)-x_2$

$(d)-5x_2^2$

$(a)50,000(b)750,000$

$(c)1,875,000$

$a0ft$ and units $in$ poundfeet.

$(a)0$

$(b)-150x_1$

$(c)-300x_1^2$

$(d)-150x_1^2$ equation, $m,$ for the virtual structure subjected $to$ a downward unit load $atC.$ Use $0$ and units $of$ pound$-$feet.

$(a)0$

$(b)-10$

$(c)-x_2$

$(d)-5x_2^2$

$(a)50,000(b)750,000$

$(c)1,875,000$

$a$