Finding Moment About Any Point: Fixed Moment Value?

[385sk117]

The formula to find the moment about anypoint is
Fxr right? but if the moment is given, for example 50Nm
then the moment is fixed right? even if we change the regarding point
on the system, the given moment is 50Nm regardless what point we are regarding to.
Am I right?

 

[tiny-tim]

Hi 385sk117!

If it's a couple (ie, a pair of equal and opposite forces), then yes, its moment is the same about any point.

 

[Bob S]

Use parallel axis theorem. See first equation in

http://en.wikipedia.org/wiki/Parallel_axis_theorem

Bob S

 

[tiny-tim]

Hi Bob!

Use parallel axis theorem. …

That would be for a moment of inertia …

this one is in Nm, so I 'm assuming it's a moment of force.