Solution of task 1.1.9 from the collection of Kepe OE

Solution of task 1.1.9 from the collection of Kepe OE

1.1.9
A plane system of convergent forces F1 = F2 = F3 = 10H is applied to the column at point A.
Determine the sum of the projections of the given forces on Ax if the angle? = 60 °. (Ref. 27.3)

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