[12 piece bucket]

Bernt

I live on a different planet. That limits my ability to intelligently communicate with you regarding this topic.

nmgolfer

What do you think of his centripetal arrow pointing towards the swing center in his diagram?



The presumption is that the swing center is the center of the clubhead's arc of travel. However, it is nowhere near the center of a circle transcribed by the clubhead arc.

Here is Tiger Woods clubhead arc - only roughly outlined in red. Blue is the swing center. Yellow is the radial distance to different points on the clubhead arc.



What do you think of Bernt's statement "that centripetal force conserves speed and stores energy"?

Surely centripetal force is only relevant to the clubhead's circular motion at each instantaneous moment in time - as it constantly changes direction in a circular manner, and moves from one point on the clubhead arc (point X) to another point (point Y), and the centripetal force is the force needed to centripetally accelerate the clubhead from point X to point Y. The direction of the centripetal force is surely drawn towards the center of the instantaneous circle of rotation, which changes from moment-to-moment because the clubhead arc is not perfectly circular.

Jeff.

Would you say the arc of the hands is closer to a true arc?