Solution of task 3.2.21 from the collection of Kepe OE

Solution of task 3.2.21 from the collection of Kepe OE

3.2.21
A homogeneous beam AB, whose weight is 200N. Freely supported at point B on the horizontal beam of the CD. Determine with what force the CD beam acts on the reference plane at point D if the distance CB = BD, angle? = 60 ° The weight of the CD beam is neglected. (Answer 100)