For the truss shown below

$AB$

$BC$

A$)$ Draw the necessary free body diagram$($s$)(6$ points$)$

B$)$ The truss shown is externally $(1$ point$)$

i$.$ determinate and stable

ii$.$ indeterminate and stable

iii. determinate and unstable

iv$.$ indeterminate and unstable

$F_x=A_x-G+A_x=+8$

$F_y=-6+A_y=>A_y=6$

$M_A=-(600)-6(800)$

$G=-8$

satisfy

Reason: $q,(1$ point$)$

C$)$ The truss shown is internally $(1$ point$)$

i$.$ determinate and stable

ii$.$ determinate and unstable

iii. indeterminate and stable

$m=2j-3$

$11=2(7)-3v$

iv$.$ indeterminate and unstable

Reason: Satifitiges the equation

$(1$ point$)$

D$)$ Solve for internal force in member $AB=q,$ Tension $/$ Compression $(3$ potnts$)$

E$)$ Solve for internal force in member $BC=q,$ Tension $/$ Compression $(3$ points$)$ zero force

zeroforiber

F$)$ Solve for internal force in member $BD=q,$ T Tennion $/$ Compression $q,$ rember

$FBPofB,BD=AB$

why

FBPOPD &$F_x=0=$

$M_3=2(400mm)=$

$-10100$