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}?

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.

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.

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.