Question

Need help in understanding a theory from analytical statics.

Answer 1

which theory?

Answer 2

Hi.. I need to know how do we detect the signs of forces parallel to the axes and the moment about the origin if a line is given,,

Answer 3

Let me post the question.. I think it will be better. @TuringTest

Answer 4

That sounds like something different than you were originally asking, but I am probably more equipped to answer it. Please post the full question.

Answer 5

Yeah I have the solution too... But the signs I am a bit confused..

Answer 6

@TuringTest here is the question.

Answer 7

hm you should probably post this question in physics too
this will be tricky for me, I haven't done a problem like this in a long time

Answer 8

I posted in Physics group.. But no one responded yet..

Answer 9

It is not clear to me from the question :
1. Direction of the forces (i.e. the sense of the arrows)
2. magnitudes of the forces.
I assume that the magnitudes are P, Q and R respectively.
If the forces are proportional to the sides the triangle, the resultant force would be zero, and the final result is a couple.

Is the answer in terms of P,Q and R, or are they pure numbers?

Answer 10

@mathmate, I will post the solution and then ask you the portion I am having confusion...

Answer 11

@Princer_jones ... whenever you have a chance! :)