Oh ok, at this point I thought that I can just ignore the forces on A b/c the question was asking about B. I'm still a little confused...sorry. It's a little hard to explain this via text only...lol
I don't have the solution sorry. What do you mean by reaction in B? If I disregard A does that mean that I'll just have a combined distance of 5 from the left side to point B and just calculate the total weight from that side? Thanks again.
Homework Statement
The uniform work platform, which has a mass per unit length of 28kg/m, is simply supported by cross rods A and B the 90-kg construction worker starts from point B and walks to the right. At what location S will the combined moment of the weights of the man and platform...