Posted by: Dennis W. () on Tue Jun 12 17:09:10 2007

> > > Time for your medicine.
> >
> > I would have to agree with Teacherman and Jack.
> > We are not discussing if rotation and linearity occurs simultaneously when DIRECTION is the subject. We all know that can happen. The barrel of a gun was designed with this in mind, a projectile can maintain it's trajectory longer while rotating. As a football would.
> >
> > We are discussing roation and linearity with generating energy (power) in mind. That is the issue in this forum. Please, pseudo scientists, do not randomly grab a descipline such as physics and find an example to suit your need. The very basic premise of an object in motion is that at the moment that object changes course (direction) from linear to rotation or vice versa, any kinetic energy that was built up to that point is lost according to the degree of directional change.
> > If you stood on top of a moving train and thru a rock into the direction the train was moving, the rock would then travel the speed of the train PLUS the speed in which it left your hand.
> > If you thru that rock to the side of the train, it is obvious you have (speed of the train- degree of misdirection) relative to the forward motion........
> > get the picture?
>
> Hi Dennis W.,
>
> What I am trying to convey is that linear energy can be translated into rotational energy.
>
> Best,
> BHL

BHL,

WRT the stride forward, obviously a linear movement, I do believe the energy from that motion can be transferred into the rotational energy.
If the batter took the stride onto a closed hip (foot closed) then the energy from that forward (linear) motion would be lost.
If the batter took the stride and landed with an open hip (open foot), this would allow the hip to take the energy (inducing torque) where the body can then finish with rotation. If done properly the stride forward could be used as a force to begin rotation of the lead hip, yet not happening simultaneously.

Dennis W.