|
Post by imperfectgolfer on Mar 9, 2012 23:21:27 GMT -5
See this BM-forum thread. www.brianmanzella.com/golfing-discussions/16947-role-body-newtons-3rd-law.htmlBM stated-: " WE ARE TRYING TO PUT FORCE ALONG THE HAND PATH!!!!" OK. What type of "force" do you think a golfer is using to move his hands along the hand arc path? Here is a clue? Diagram from the Miura paper. Note that he describes two forces - a tangential force and a normal force. Do you believe that this is the "force" that a golfer is using to move his hands along the hand arc path? What happens if the golfer performs a golf swing motion without a golf club in his hands - but performs the identical pivot/arm/hand motion so that his hands track along the same hand arc path? Is he applying the same force to move his hands along the same hand arc path? Jeff.
|
|
|
Post by gmbtempe on Mar 13, 2012 8:50:08 GMT -5
?
If you are using a right arm throw, or a hitting procedure, how do you handle drag?
Was just wondering since a few comments have labeled me a handle dragger in various places around the net. I use more a hitting procedure.
It does not compute with my swing and wonder what I am missing.
|
|
|
Post by imperfectgolfer on Mar 13, 2012 9:22:40 GMT -5
nmgolfer wrote-: "Assuming that the tangential component of force is somehow unique or not linked to the radial component is a mistake. The two are inextricably linked because they are merely parts of the whole. There are not multiple kinds of force."
I agree that the division is conceptual, rather than there being different forces. Most importantly, the "normal force" equation is dependent on the mass of the clubhead and clubhead velociity squared. I believe that there can be no normal force if the golfer performs a golf swing without a club.
nmg wrote-: "The better question is does the golfer use the same biomechanics to move his hand along the path in the absence of a golf club. I would argue yes. He uses virtually the same biomechanics whether or not a golf club is being stroked or not."
I agree on this point. That means that a golfer doesn't have to change his swing biomechanics when using a golf club - as BM implies when he states that one has to "go normal" in phase 3 of the downswing. It is true that a "normal force" exists during the club releasing phase (phase 3 of the downswing) when a golfer uses a club, and that the golfer must be applying a CP-force to maintain his hands on his hand arc path during phase 3 of the golf swing. However, he doesn't have to change his swing pattern from a biomechanical perspective in the presence of a golf club. He uses the same biomechanical swing actions to move his hands along the hand arc path - even though he may "feel" more braced in reaction to the centrifugal-loading of the club as it releases (in a similar manner that a hammer thrower has to be braced when spinning around during his pre-release phase).
Jeff.
|
|