Will someone knows how to solve this?

Question

the plank DE is horizontally hinged to the wall at E and supported by D by a cord making an angle of 50deg. with horizontal. the cord is passed over a smooth pulley at C and supports a 12.0kg load at B. a second cord is attached to B to a rigid connection at the other end of the wall A. AB and DE are both horizontal. determine the weight of the plankand the tension in the cords.. show please your computation

Answer 1

have you drawn the picture. its difficult to explain this online.  you can either figure this out with forces(which is a lot of work) or by using energy conservation.

good luck

Answer 2

you should do your assignment