Quote:
Originally Posted by mandrin  Jay,
In past posts I have used various types of arguments, each of them showing the fallacy of increasing the ‘effective mass’ of the club head or that of the ‘heavy hit‘. In the thread ‘Golf Impact Physics’ I did mention : “that the analysis above is based on the traditional 'quasi-static' view of the shaft resisting impact. A true dynamic analysis however should consider the finite propagation time of the impact disturbance up and down the shaft. “
Indeed strictly looking from a standpoint of physics it is definitely the matter of propagation which is to be considered either for the shaft in line or making angle of 90 degrees. But it is easier to convince people with more down to earth arguments than using the more esoteric concept of propagation time. 
I took deliberately the extreme inline case as it ‘allows’ to bring into play clearly ALL the weight of the ‘golfer’ behind the ball and yet even then it is completely in vain. Common sense indicates probably to everyone that putting the shaft at an angle of 90 degrees does not allow this anymore. |
mandrin,
You would think, but I wonder if some of folks on that other forum you mentioned at the start of this thread would say make the connection.
So, let's say the 90 degree shaft is inflexible. Using your analysis, the head might not be decoupled from the shaft completely, however, the head is certainly decoupled from any force exerted by the golfer (through PP#3 or whatever). Seems like a more compelling demonstration of this effect than I've seen previously. Cool!
Jay