Solution of the problem of the collection of Kep 2.4.28

Solution of the problem of the collection of Kep 2.4.28

On the farm operates vertical force F. When any value in degrees of angle a support reaction RA = 2F?

Additional information:

Within 2-3 days after payment you will receive the solution of 2.4.28 (Chapter 1 - statics topic - 2.4: Balance arbitrary plane system of forces.) In theoretical mechanics from the collection of short tasks Kep OE, JA Viba, OP Grapis, JA Svetinysh and others. Publishing Moscow / Graduate School / 1989, 2009, 2012. The task is made in the format word (typed or hand-written decision in a Word) or in manuscript form in the format gif, packed to the archive zip (open on any PC) .After checking the solutions would be very grateful if you leave your positive feedback.