Yes. Flies forward relative to the car.
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Pivot Brake
- Thread starter tbarbertab
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Yes. Flies forward relative to the car.
Brian Manzella
Administrator
No offense...
But IF you have LOW "braking" you won't hit it anywhere.
Period.
But IF you have LOW "braking" you won't hit it anywhere.
Period.
James Marshall (Hogan1953)
New member
NAT,
Sorry but there is no transfer of momentum in your "book in the backseat example". The book retains the same amount of momentum it had before braking. The car loses momentum ( and velocity). NO momentum is transferred to the book. None.
So golfie, does the same apply to the golf swing? Would it be better to talk about a loss of momentum of the proximal elements as the downswing proceeds rather their transferring momentum to the distal elements? Do the distal elements therefore in a sense keep their momentum longer?
Thanks
A question for those with access to biomechanics gurus
Do the biomechanics gurus understand the role of the golfers flail?
The golfers flail will slow down the hands ( a lot ) and the pivot ( a little maybe ) prior to impact in a good golf swing. I have heard that sometimes conclusions are drawn based upon the observed differences between good mechanic (pro golfers) and bad (hacks). In this case, the hack would have little slowing compared to the pros because they do not have much accumulator lag to release. It is possible that erroneous conclusions might be drawn.
Do the biomechanics gurus understand the role of the golfers flail?
The golfers flail will slow down the hands ( a lot ) and the pivot ( a little maybe ) prior to impact in a good golf swing. I have heard that sometimes conclusions are drawn based upon the observed differences between good mechanic (pro golfers) and bad (hacks). In this case, the hack would have little slowing compared to the pros because they do not have much accumulator lag to release. It is possible that erroneous conclusions might be drawn.
thread is gaining momentum
I think that we can all agree that the transfer happens in the golfers flail.
I think it is unlikely that braking in the lower body will cause the upper body to speed up (gain momentum) as some might suggest. Think of two discs one on top of the other. They are happily spinning togher at he same speed with a little bit of friction between them. Brake the bottom one.... does the top one speen up?
By the way, I think that just because the action is initiated in the lower body it (the lower body) is not more distal than the upper body in terms of distance from the center of the golf swing. IMO, It is this centeredness of motion that makes the golf swing very unlike pitching a baseball or cracking a whip.
So golfie, does the same apply to the golf swing? Would it be better to talk about a loss of momentum of the proximal elements as the downswing proceeds rather their transferring momentum to the distal elements? Do the distal elements therefore in a sense keep their momentum longer?
Thanks
I think that we can all agree that the transfer happens in the golfers flail.
I think it is unlikely that braking in the lower body will cause the upper body to speed up (gain momentum) as some might suggest. Think of two discs one on top of the other. They are happily spinning togher at he same speed with a little bit of friction between them. Brake the bottom one.... does the top one speen up?
By the way, I think that just because the action is initiated in the lower body it (the lower body) is not more distal than the upper body in terms of distance from the center of the golf swing. IMO, It is this centeredness of motion that makes the golf swing very unlike pitching a baseball or cracking a whip.
Thanks Golfie...for your correction..
I'm not an expert in the field...I guess my professor, Dr. Brian Bergemann, a PhD in Biomechanics at Campbell University, is wrong about this transfer of angular momentum that is created by the joints and segments ...Because his 3D studies say that effecient swings are like a baseball pitcher, batter, hammer thrower, discus, javelin and the technique is similar to the game of "cracking the whip"..which is sequential motion as oppossed to the thrust of the shotput which is a simultaneous motion...
How does a golfer generate a transfer of momentum form the body to the left arm and the club? If it's not sequential or simultaneous motion
I guess then it doesn't work like a "gear train" ....As described by many....
How does it work?
I'm not an expert in the field...I guess my professor, Dr. Brian Bergemann, a PhD in Biomechanics at Campbell University, is wrong about this transfer of angular momentum that is created by the joints and segments ...Because his 3D studies say that effecient swings are like a baseball pitcher, batter, hammer thrower, discus, javelin and the technique is similar to the game of "cracking the whip"..which is sequential motion as oppossed to the thrust of the shotput which is a simultaneous motion...
How does a golfer generate a transfer of momentum form the body to the left arm and the club? If it's not sequential or simultaneous motion
I guess then it doesn't work like a "gear train" ....As described by many....
How does it work?
Last edited:
.....
I don't know about anyone else, but I understand it as follows...
From the top,
Hips shift left and start turning, dragging the left shoulder first down and left..
Hips come nearly to a stop, shoulders now start to catch up with the stopped hips and the left shoulder starts to move up and left, the upward movement effectively slowing down the left arm as it approaches its lowest point.
Because the left arm has slowed and the right arm is straightening, the club can now catch up and release....
Momentum and weight of the moving arms and clubhead (especially) now pull the golfer to a full finish...
Thanks Golfie...for your correction..
I'm not an expert in the field...I guess my professor, Dr. Brian Bergemann, a PhD in Biomechanics at Campbell University, is wrong about this transfer of angular momentum that is created by the joints and segments ...Because his 3D studies say that effecient swings are like a baseball pitcher, batter, hammer thrower, discus, javelin and the technique is similar to the game of "cracking the whip"..which is sequential motion as oppossed to the thrust of the shotput which is a simultaneous motion...
How does a golfer generate a transfer of momentum form the body to the left arm and the club? If it's not sequential or simultaneous motion
I guess then it doesn't work like a "gear train" ....As described by many....
How does it work?
I don't know about anyone else, but I understand it as follows...
From the top,
Hips shift left and start turning, dragging the left shoulder first down and left..
Hips come nearly to a stop, shoulders now start to catch up with the stopped hips and the left shoulder starts to move up and left, the upward movement effectively slowing down the left arm as it approaches its lowest point.
Because the left arm has slowed and the right arm is straightening, the club can now catch up and release....
Momentum and weight of the moving arms and clubhead (especially) now pull the golfer to a full finish...
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