BE8ULTAXT OF PARALLEL POKtt. 



< : 



- moment of the first couple is fy,, and this couple, 



ig its effect, may be transferred to the plane of 



(y, s), which is parallel to its original plane, The moment 



< second couple : and the couple is in the plane 



) 



we effect a similar transformation of all the farces, we 

 hare, as the resultant of the system the following system. 



(1) a force 



acting at 0; 

 (2) acouj : i the plane of (y,); 



(S) a coup! :i the plane of (2, s). 



. m the body from the axis of y to 

 that of r t and the second from t 



may therefore take Ox as the nxi* of the tint couple according 

 to the defituti : i I t he second couple, howerer, 



we must either take Oy as the axis, or consider it as a couple 

 turning from s to moment is Ar And the 



axis Oy. Adopting the latter method, we may replace the 

 two couples by a single couple of which the moment if 0, 



axis is inclined to the axis of x at an 

 ic equations 



COS (I ^ 





