The String in TGM is the Longitudinal Center of Gravity or termed herein the Sweetspot Plane..I have a Training Aid with a String from the #3PP to directly to the CG of the head.....While Centrepetal force pulls it in a circle...Centrifugal force changes the length of this string...
The String in TGM is the Longitudinal Center of Gravity or termed herein the Sweetspot Plane.
The Golf Club's Longitudinal Center of Gravity is its Sweetspot (2-F). In other words, it is the Club's center of gravity when the Club is held lengthwise. It is neither the 'string' (the Left Arm and Clubshaft to which the Sweetspot is attached) nor the plane of motion (upon which the Sweetspot orbits).
"While Centrepetal force pulls it in a circle...Centrifugal force changes the length of this string..."
Centripetal force acts on the rock. Centrifugal force acts on the string. For other contributors, remember that these words aren't magic. Centrifugal=away from the centre. Centripetal=toward the centre.