Solving 3D Statics Moment & Normal Force Problems

[mrmotobiker]

hi all, I'm new to this forum and have read through a lot of the topics. i also tried searching the previous problems, but haven't found anything yet.

anyways, here's my question:

how do i find the reaction (normal) forces on points C, B, and A? I'm trying to do this with the vector method which i originally thought is supposed to be
rac X C + rab X B - rad X F.

the answer is supposed to be Nb=Na=.367F and Nc=.265 and which is what i got doing it the long and painful way of summing all forces and finding moments in 2d first.

thanks.

 

[radou]

The attachment doesn't seem to work (or is it just me?).

 

[Pyrrhus]

The attachment doesn't seem to work (or is it just me?).

It hasn't been approved, yet... *waiting for a mentor*

 

[Pyrrhus]

You can do it vectorially, just make sure, you're doing it well. Maybe you can post your attempt.