Determine the resultant of the four forces of Problem (magnitude and angle of inclination...

Determine the resultant of the four forces of Problem (magnitude and angle of inclination with respect to the X axis). Compute the moment of the resultant with respect to point O and compare with the results of Problem.

Problem

Four coplanar concurrent forces act as shown.

(a) Calculate the moment of each force about point O.

(b) Calculate the algebraic summation of the four moments about point O and determine the sense of rotation.