Solution of task 3.2.22 from the collection of Kepe OE

Solution of task 3.2.22 from the collection of Kepe OE

3.2.22
A homogeneous horizontal beam AB, whose weight is 3 kN, at point B is freely supported by the CD beam. Determine in kN the force of the beam of the CD on the base at the point D if the distance BD = BC, the angle? = 60 ° The weight of the CD beams is neglected. (Answer 3)