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## Homework Statement

A stick is connected to other partrs of a static system by hinges at its ends. Show that a massless stick feels forces, at the hinges, that are directed along the stick. Then show if the stick is massive, the forces do not need to point along the stick.

## Homework Equations

## The Attempt at a Solution

I have no idea where to start or how I can write this out to prove it in every situation. For instance its obvious the the stick attached to a wall and then a block, with a force point away from the wall, that all the forces go with the stick (exactly like tension in a massless rope). Then when mass is introduced the force of gravity clearly offsets the forces felt. I can use the later for the second part, but how does one go about showing the first part in all situations?