ohhhh i get it, must be equal to 0.5KN since 2-1.5= 0.5KN at ---> direction, is that right?, and can the moments method be used aswell? and if so could you explain. thanks!
The problem in the first place was, i don't know how to calculate the horizontal forces, what distances to use etc in order to find the reaction force at A, I want to learn how to do it. i have no knowledge on doing horizontal reaction forces unfortunatly :/
The distance of the 4KN from Point A is 0m.
The support reaction direction have been indicated on the attachment i posted.
Working out for the Vertical Forces:
Taking moments about point A, taking anti clockwise as positive:
By*10-2*9-5*6-3*2-4*0 = 0
By = (18+30+6+0)/10 = 5.4KN...
[b]1. Hi, The problem:
A roof support frame has various leadings on it. The frictionless pin joint at points A has vertical and horizontal reaction forces. The rollers at point B allow free movement in the horizontal direction and has a vertical reaction.
a/Calculate The total Horizontal...