Solution of task 2.1.7 from the collection of Kepe OE
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2.1.7
A pair of forces (F1, F'1) and force F = 2Н act on the arch ABC.
Determine the sum of their moments relative to point B if the force F1 = 3H, radius r = 1m, shoulder DE = 1.2 m, angle? = 45 °.
(Answer 5.01)