Solution of task 5.7.4 from the collection of Kepe OE

Solution of task 5.7.4 from the collection of Kepe OE

5.7.4
The homogeneous horizontal beam DE, on which a weight G = 800 N is installed, is supported at point D by the horizontal rod structure ABCD held by the vertical cable FH. Determine the reaction of the bearing A, if the distances DF = 2 FB, AB = BC. (Answer 400)