When mating surfaces of contacting bodies are rough, the force of contact: A force in the x direction and a force in the y direction. O A force in the x direction, a force in the y direction, and a moment about the z axis. O A force in the x direction and a moment about the z axis. O A force in either the x direction or the y direction and a moment about the z axis.

Also, determine the y-component and z-component of the moment about point O. Express your answer in units of kN-m.

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

Two men exert forces of F= 90 lb and P= 50 bl on the ropes as shown in (Figure 1). Determine the moment of the force F about A. Express your answer to three significant figures and include the appropriate units. Enter positive value if the moment is counterclockwise and negative value if the moment is clockwise. Determine the moment of the force P about A. Express your answer to three significant figures and include the appropriate units. Enter positive value if the moment is counterclockwise and negative value if the moment is clockwise.