I can only find the value of A-y-component

[frozen7]

After separate the diagram to several parts, I can only find the value of A-y-component = 175N by taking moment at C. But how come I can't get that value if I use F-y component = 0??

 

[Pyrrhus]

Yes i know what you mean. In the 2nd member BDC, the Cy component has the same line of action as the Dy component by the disk, therefore making it has the same magnitude or modulus. Looks like a non-null resultant, like there's no equilibrium.

I will check again later, in case i miscalculated.

 

[frozen7]

Is the given answer correct or false?

 

[Pyrrhus]

Is the given answer correct or false?

I will have to get back to you with a proper answer later today or tomorrow, i have some work plans that require my inmediate attention.