[Yoda]

All this is due to CF and CP. When the golfers only uses CP it is basically responding to the clubhead CF.

In fact, it is the other way around. Without centripetal force (CP), there can be no centrifugal force (CF).



In my previous 'whirling ball' example, the ball is experiencing centripetal acceleration toward the center of the rotating motion. The string supplies this inward pull. Newton's Third Law (equal and opposite reaction) causes the ball to pull on the string. But . . .

There is no physical force (such as another string) pulling outward on the ball, despite the observed phenomenon (outward pull) we call centrifugal force. The ball's acceleration is due solely to the existence of the centripetal force (the string). Hence, the ignominious distinction applied to centrifugal force: a "fictitious" or "pseudo" force.

Homer Kelley knew this, of course, and therefore defined Centrifugal Force in The Glossary as it should be understood and used by golfers:

Mechanical -- The resistance of the Inertia in an orbiting object to change in direction.

Golf -- The effort of the Swinging Clubhead to pull the Primary Lever Assembly (Left Arm and Club) into a straight line.

So, don't be buffaloed by those who argue that TGM is "junk science" because centrifugal force "doesn't exist". It exists all right, just not in the way it is commonly perceived. My suggestion is to use this "fictitious" force the way Homer intended:

Turn your 9-ounce Clubhead into a wrecking ball!