Solution of task 2.1.6 from the collection of Kepe OE

Solution of task 2.1.6 from the collection of Kepe OE

2.1.6
Two pairs of forces act on the plate in its plane. Determine the sum of the moments of these pairs if the force F = 8H, Q = 5H, the distance AB = 0.25 m, CD = 0.20 m, the angles? = 60 °,? = 70 °. (Answer 0.792)