*'.' 



+ /', ami it acts throttirh 

 M parallel to ;.) 



rn*. v> perpendicular to the plane of (, y), 

 plane at Iraw mJe parallel to oAc 



md mjc at e. by 



M-/ r.: ; . 



fore * - *, - n - 



fore **- P 



ordinate parallel to the axU of * of the point 

 of the resultant of P, and 



n supposing P t and P t to be replaced by P ( 4- P t acting 

 /', and /', i - r JP |t and the 



us process may be extended to any number of parallel 

 forces resultant force and s the ordinale of 



its point of application ; then 



= . 



r co-ordinates of the point of 

 resultant, 



y, i are indcpei shich 



lip- -. of tne forces make with the axes. 



these directions be turned about the points of application of 



parallelism being preserved, the point of 



i.s. 5 



