Determine the couple moment Use a vector analysis and expres

Determine the couple moment. Use a vector analysis and express the result as a Cartesian vector.

Solution

M= Ubc (dot) Rab x Fb
Ubc= (1/9) <3,-6,-6>

F=600

Ubc (dot) F = <200,-400,-400>

Rab= <-4,-12,-2>

M= <4000,-2000,4000>

M= (4000i-2000j+4000k) N-m