Two like parallel forces P and Q act on a rigid body at A and B respectively. If P and Q be interchanged in position, show that the point of application of the resultant be displaced through a distance d along AB, where d =

Options

A. `(P+Q)/(P-Q)AB`
B. `(2P+Q)/(2P-Q)AB`
C. `(P-Q)/(P+Q)AB`
D. `(P-Q)/(2p+Q)=AB`

Answer

C