F= 30 lb 60 O 1b 90 4'-0" 45 F; = 10 lb F2= 40 lb %3D Y

Four coplanar forces act as shown. Calculate the moment of each force about point O. Calculate the algebra summation of the four moments about point O and determine the sense of rotation.


Extracted text: F= 30 lb 60 O 1b 90 4'-0" 45 F; = 10 lb F2= 40 lb %3D Y