[tongzilla]

Here's a bit of trivia for you guys. In the Endless Belt Effect model shown in 2-K#6, is Clubhead Speed increasing (i.e. accelerating) during the curved portion of the belt as it goes round the pulley (labelled as Radial Travel on diagram)?

In this model (2-K #6), the Clubhead does not accelerate during its Radial Travel around the pulley. There is infinite acceleration of the Clubhead for an infinitesimally small amount of time in between the linear and radial travel (just when the belt starts to curve). The clubhead then moves at a constant, albeit a higher speed than the belt during its radial travel.

Now, moving on a bit...

The assumption of the Endless Belt Effect is that Belt Speed stays the same throughout. But because of the Law of Conservation of Angular Momentum, if there was a motor turning the belt, and its energy output remains constant, the belt will actually slow down as the club goes round the pulley. So more energy has to be put into the system just to keep the belt speed constant. Think about it, the clubhead doesn't speed up for no reason!

Back to golf. How do we keep the Belt Speed/Hand Speed constant during Release? Swingers use Momentum Transfer, Hitters use Right Arm Thrust. One is more effective than the other.