When Can the Mass of a Suspended Bar Be Ignored in Torque Calculations?

[mdewdude]

Homework Statement

When analyzing the torques on a suspended bar such as meter stic, under what conditions is it acceptable to ignore the mass of the bar itself?

Homework Equations

NONE

The Attempt at a Solution

The only condition that I can find is when the mass of the bar itself is neg liable compared to the other hanging weights. Are there any more conditions that I am missing?

 

[mdewdude]

Would this work as well: if the bar was suspended in the center as the mass of the bar is equal on both sides of the suspension