Release_1

The starting position for the club is vertical. Club modeled as a homogeneous slender rod. Clubhead - red dot, hands - blue dot. Constant force F applied acting on blue dot.

The constant linear force F above causes both an angular and linear motion of the club.

The force F is reduced to zero at t=.26 sec.  A very different behaviour for the club results in this case once the constant pulling force F dissapears.

The inertial torque acting on the club in the two cases is shown in Figs 3a and 3b.

Some interesting observations can be drawn from the simple thought experiments above.

-1- Angular motion can be obtained from a linear force, hence without any torquing action.
-2- When force F disappears in case b, a positive inertial release torque develops. Compare Figs3a and 3b.
-3- Greater clubhead speed is obtained by spending less effort in case b. Compare Figs1b and 2b.

The next step is to replace the linear by curvilinear trajectories for the grip end of the club. This will get us  a bit closer to a real golfswing.