20. Determine the support reactions for the truss shown below, A 75 B 3m 5KN C 3m 25 AN 10 15 AN 3m 3m 3n 3m

Determine the forces in the members of the truss as shown. AB = 100 Ib C; AC = 86.6 Ib T; BC = 100 lb T; CD = 86.6 lb T; BD = 200 Ib C 100 lb 30° 30° 100 Ib

Determine the reactions at the supports and the force in each member of the space truss shown. Give your answers in 3 decimal places since 1 k(kip) = 1000 lbs. y 25 k E 15 k 12 ft C C, 3 ft D. 3 ft C, B, AB B /18 6 ft 6 ft

1. For the beams shown below: (a) calculate the support reactions. (b) calculate the internal forces at sections A and B and indicate if the internal forces are positive or negative. F, = 40 lb F2 = 30 lb dj = 20' – 0" dz = 10' – 0" A F2 = 30 lb F = 40 lb 8' – 0" 17' – 0" 3' – 0" 7'- 0" 5' – 0" A 10 ķips 3 kips/ft- 8' – 0" 8' – 0" 3'