10 in. 4 15 in. 16 lb B 40 lb D 15 in E 40 lb 10 in. 16 lb 10 in. Q.2) Two pairs of coupling forces act on the triangular wedge as shown. Determine the resultant couple moment expressed as a Cartesian vector. State whether or not the resultant couple moment acts about a unique line in space.

Q.4) A pipe assembly is acted on by four forces and one couple moment. The 300 N force is parallel with the z-axis, the 130N force is parallel with the y-axis, and the 60 N force is parallel with the x-axis. Force F, has a magnitude of 220 N and coordinate direction angles given by aA 45°, BA = 60°, and YA = of 400 N•m. Determine the resultant moment about point B. 120°. The couple moment M. is in the x-z plane and has a magnitude %3D %3D Mc 30° 300 N 1 m 0.75 m В 0.5 m E 00 N 0.75 m A 130 N FA

F1 F2 F3 A b F4 D F5 Consider the following values: - a = 25 m; b 5 m; c = 25 m; d = 5 m; F1 = 4 kN; F2 = 5 kN; F3 = 6 kN; F4 = 7 kN; F5 = 8 kN; a = 30°, 0 = 60° %3D B = 30° 1] What is the resultant moment of the five forces acting on the rod about point A? a) - 75.8 kN.m b) 32.7 kN.m c) - 14.6 kN.m d) 72.9 kN.m e) 27.1 kN.m - 66.1 kN.m 2] What is the resultant moment of the five forces acting on the rod about point B? a) - 198.8 kN.m b) 212.7 kN.m c) - 121.6 kN.m d) 98.9 kN.m e) 125.4 kN.m f) -170.2 kN.m 3] What is the resultant moment of the five forces acting on the rod about point C? a) - 96.7 kN.m b) 251.1 kN.m c) - 114.6 kN.m d) 217.9 kN.m 154.1 kN.m f)-177.7 kN.m 4] What is the resultant moment of the five forces acting on the rod about point D? a) - 198 kN.m b) 127 kN.m c) – 219 kN.m d) 369 kN.m e) 151 kN.m f) - 171 kN.m Activate V 5] What is the moment of the force F2 about point E? Go to Setting

Q.2 Determine the resultant moment of the forces shown about point O as shown in figure 2. 50 N 2 m 2 m (O N 3 m 20 N 40 N Q.2/Figure 2