The pipe assembly is subjected to the action of a wrench at B and a couple at A. Determine the magnitude F of the couple forces so that the system can be simplified to a wrench acting at point C.
Given:
a = 0.6 m
b = 0.8 m
c = 0.25 m
d = 0.7 m
e = 0.3 m
f = 0.3 m
g = 0.5 m
h = 0.25 m
P = 60 N
Q = 40 N

-Fi Fi b. A Pk -Pk Qi