Direction of reaction of a support

[werson tan]

Homework Statement

why the recation of the force is acted to the right ? why not to the left ? how to determine it ?

Homework Equations

The Attempt at a Solution

 

[PhanthomJay]

Homework Statement

why the recation of the force is acted to the right ? why not to the left ? how to determine it ?

Homework Equations

The Attempt at a Solution

You give little information. Is the short member in tension or compression?

 

[werson tan]

You give little information. Is the short member in tension or compression?

This is my notes. I have no idea. Can you explain when the reaction is acted to the left ? Or when is tge reaction acted to the right? Compreession or tension?