Internal Forces $-$ Deformable Body Equilibrium

Beam loaded as shown. D is a point within the beam $($not a hinge$).$ Reactions $A_y=17\mathrm{.}95$ kips and $B{y}_y=25.$ S$5$ kips have been determined. $($Hint: There is another reaction at A$.)$

Draw a free body diagram for a cut at $D.(5$ pts$)$

Determine the internal shear force at $D.(4$ pts$)$

a$.-4\mathrm{.}37$ kip $)$

b$.0$

c$.-4\mathrm{.}55$ kip $)$

d$.-4\mathrm{.}19$ kip $)$

Determine the internal normal force at $D.(4$ pts$)$

a$.0$

b$.6\mathrm{.}00$kip$(T)$

c$.8\mathrm{.}00$ kip $($T$)$

d$.8\mathrm{.}00$ kip $($C$)$

Determine the internal moment at D$.(4$ pts$)$

$3.+65\mathrm{.}2$kip$*ft$

b$.+62\mathrm{.}7$ kip $.$ft

c$.+67\mathrm{.}8$ kip$-$ft

d$.+60\mathrm{.}3$ kip$-$ft