At What Point Does Weight Diminish MOI Benefits in Golf Clubs?

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Discussion Overview

The discussion centers on the relationship between weight and moment of inertia (MOI) in golf clubs, specifically exploring at what point additional weight may have a diminishing effect on increasing MOI while maintaining the same size. The scope includes theoretical considerations and mathematical reasoning related to the physics of rotational dynamics.

Discussion Character

  • Technical explanation, Mathematical reasoning, Debate/contested

Main Points Raised

  • One participant questions the concept of a diminishing effect of weight on MOI, seeking clarification on what that means.
  • Another participant proposes a scenario involving a ring with a specific diameter, asking at what weight the MOI would not significantly increase with additional weight.
  • It is noted that mass is linear in moment of inertia, suggesting that there is no diminishing effect on MOI with increased weight.
  • A participant provides a reference to the moment of inertia of a hoop, indicating a theoretical basis for the discussion.
  • There is a claim that if the mass of an object is doubled while keeping its shape and mass distribution the same, the MOI would also double.

Areas of Agreement / Disagreement

Participants express differing views on the concept of diminishing returns regarding weight and MOI, with some asserting that mass directly affects MOI without diminishing effects, while others question the conditions under which this holds true. The discussion remains unresolved regarding the specific weight thresholds and conditions for diminishing effects.

Contextual Notes

Participants do not fully explore the assumptions regarding mass distribution and shape, which may influence the relationship between weight and MOI. There are also unresolved mathematical steps related to the calculations of MOI for different configurations.

john ambrose
At what point will weight have a diminishing effect on increasing MOI with a given size remaining the same?
 
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What do you mean by a diminishing effect?
 
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?
 
mass is linear in moment of inertia, so there is no diminishing effect.
 
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?
 
if the shape of the object and the distribution of mass remains the same then yes, twice the mass doubles the moi
 
Thanks Marc.
 

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