Express the moment of the couple acting on the pipe assembly in Cartesian vector form. Solve the

Question:

Express the moment of the couple acting on the pipe assembly in Cartesian vector form. Solve the problem
(a) Using Eq. 4-13, and
(b) Summing the moment of each force about point O.
Given:
F = (0 0 25) N
a = 300 mm
b = 150 mm
c = 400 mm
d = 200 mm
e = 200 mm