Question

should this anlge be To make sure this truss is statically determinate M+R=2] 6M+4R=2*5 10=10 40 I think this is a zero force member WY 90 90 DEGREE 50 SIDE A1 SIDE A2 A3 has to = 10 meters SIDE A3=A1+A2 FIND: All members and if in Tor C WX, WY,ZX,ZY

Answer 1

1. Given that wordeng wx+?u=0 Efnzo x+2 =0 Ely=0 wy+Zy=5N-D tx 1 IGN FV 24 The jants of names not provided so I am assume os vxy Consider joint v Efyzo - Frozin 50 - Sin. Fy= 0.766N(T) Fx VSH Fug 6-52N (T) Efnzo Fisco 350 + Exv=0 6.52X0.643 + Fouco Consolle jour x FxV=-4.19NCC) EFX = 0 Exu = Fxz ' ExY Fxz = -4.199C) et M . Efy=0 Exy=0 Consides joint z EFX=0 Zut Fzy Cosuot Ex2=0 Efy To Fzy sinuot zy zo Consido join tw: -Enzo wxt Pwy=0 Efy=0 wy=o wix furtwy 30, but wy zo in equation then zu- EXZ Exy=0 | . Exv E fy=0 fax [rzy fxz

80, from join 7 z. equations Fzy sinuot zy=0 Fzy sinuo =-50 1. Fzy =-7.789 (C) Zyl + Fzy coswot Fx220 Zu-7.78 Cosuo-4.19=0 Zx = 10.15 MCT) Consider jointy Efx=0 et WV Foulosuo = Fyrsinuo toy a Fyn Fty Fyx' Pwy +- 7.78 Cosuo = 6.52 sinuo Foy = 10.15 N(T) from joint wearahon wrt Fwyro Wx=-10.15N (€) So, finally WX=-10.15N Zx =10.15N Wy=0 Zy=5N