At what point does weight have diminishing returns for moment of inertia in golf clubs?

[john ambrose]

At what point will weight have a diminishing effect on increasing MOI with a given size remaining the same?

 

[pixel]

What do you mean by a diminishing effect?

 

[john ambrose]

If an object was a ring 6" in diameter at what weight would the MOI reach a level where adding additional weight to the ring would not increase the MOI to any large amount?

 

[Marc Rindermann]

mass is linear in moment of inertia, so there is no diminishing effect.

 

[jtbell]

Moment of inertia of a hoop (or ring, or cylinder) around its central axis:

http://hyperphysics.phy-astr.gsu.edu/hbase/ihoop.html

 

[john ambrose]

so if an object is 1' wide and 50 lbs and the MOI = X , if an additional 50 lbs is added for a total of 100 lbs the new MOI would be twice as high?

 

[Marc Rindermann]

if the shape of the object and the distribution of mass remains the same then yes, twice the mass doubles the moi

 

[john ambrose]

Thanks Marc.