Solution of task 5.3.7 from the collection of Kepe OE

Solution of task 5.3.7 from the collection of Kepe OE

5.3.7
A vertical force F1 = 2.0 N and a force F2 = 8.6 H are applied to the tetrahedron. Determine the main moment of this system of forces, taking the point O as the center of reduction, if OA = OB = OD = 5 m. (Answer 32)