Force System Resultants - General Questions (3)

A twist of 4 N-m is applied to the handle of the screwdriver. Resolve this couple moment into a pair of couple forces F exerted on the handle.

Determine the magnitude and direction of the couple moment.

The pole supports a 22-lb traffic light. Using Cartesian vectors, determine the moment of the weight of the traffic light about the base of the pole at A.

The wind has blown sand over a platform such that the intensity of load can be approximated by the function . Simplify this distributed loading to a single concentrated force and specify the magnitude and location of the force measured from A.

A force of 50 N is applied to the handle of the door as shown. Determine the projection of the moment of this force about the hinged axis z. Neglect the size of the doorknob. Suggestion: Use a scaler analysis.

Three parallel forces act on the rim of the tube. If it is required that the resultant force F_R of the system have a line of action that coincides with the central z axis, determine the magnitude of F_C and its location  on the rim. What is the magnitude of the resultant force F_R?

Determine the magnitude and direction of the couple shown.

Determine the magnitude and direction of the moment of the force at A about point P.