Question

TRUSS Determine the force in each member of the truss shown below. There is a pin at A and a rocker at E. State whether each member is in tension or compression. у 150 N 200 N 8 m B X 125 N 8 m E 6 m 6 m

Answer 1

> 150N given 8m 200N RAR 8 m RAY 123N RO at E E 6m. om n E Voller so only vertical reaction Ety=0 E => EF RAY TRE - 325 ISON Raxe moment about. A iso [8] + 200 (12) tlas (6) RE = 362.5N - REDIT]

RAY 32 $ - 362.5 Remy -37, SN Ray is dounword ay indicats RAY 37.5 W RE = 362.SN. RAX = ISON ISON 8 1700 N sino - RAXE GAB olacla Coso a RAY 1250 E "RE Junction E Assoming all in Tension & ve ABE RED 1 'RE F BE ABE coso o 362.5M FEDERE FEDE = 362.SN -ve mense compressione

3 Junction FBC FAB > EBO f FCO BE IRSN as for BE IL FAB = E FBO I Forc = IRSN Tension. Feriction FAC -K Raz FAB. -RAY Rare FAcoso at FAB AC = E sino AC RAY FACE T FAC x(37-5) FAC = 46.875 N Tenision

RAX = FAC (68) + FAR 10 X37 X39.5 x 6 + FAB iso ISO - 28.125 FAB = 121-875 N AB Tension T. Fee = lala8ISN Tension. Junction o aS DE is Compression FER FBE FOB 200 FBD. Foccoso - - lot X FBO Foc Foc = 40 x 121.875 T Foc=203.125W Tentos compression Foc = 203.12sn ve 삐 Compression