Search found 167 matches
- Thu Jan 17, 2019 4:03 pm
- Forum: Pole Vault - Advanced Technique
- Topic: Video - Pole Vault - Conceptual Physics
- Replies: 1
- Views: 39288
Video - Pole Vault - Conceptual Physics
https://youtu.be/yH3JdGb0znc This is one start in an ongoing project. That the applicable physics of the event is presented accurately. There are repeated misconceptions about the physics of the event that are repeated over and over either out of ignorance or for personal gain. Even in the allotted ...
- Wed Apr 25, 2018 3:33 pm
- Forum: Pole Vault - Advanced Technique
- Topic: Physics- The Bottom Arm in the Immediate Post Take Off
- Replies: 0
- Views: 26148
Physics- The Bottom Arm in the Immediate Post Take Off
Physics of The Bottom Arm in the Immediate Post Take Off The immediate post take off is regulated by the dispersion (not loss) of initial kinetic energy into 3 areas. 1) residual kinetic energy (horizontal veloocity) 2) pole energy and 3) potential energy. The lead arm can play a role in the directi...
- Wed Apr 25, 2018 3:27 pm
- Forum: Pole Vault - Advanced Technique
- Topic: Bottom Arm Technique -*Help Needed*
- Replies: 9
- Views: 56695
Re: Bottom Arm Technique -*Help Needed*
Physics of The Bottom Arm in the Immediate Post Take Off The immediate post take off is regulated by the dispersion (not loss) of initial kinetic energy into 3 areas. 1) residual kinetic energy (horizontal veloocity) 2) pole energy and 3) potential energy. The lead arm can play a role in the directi...
- Sat Apr 02, 2016 10:02 pm
- Forum: Pole Vault - Advanced Technique
- Topic: Placement vs. Pressure
- Replies: 31
- Views: 121865
Re: Placement vs. Pressure
https://scontent-ord1-1.xx.fbcdn.net/hphotos-xap1/v/t1.0-9/408_10206009575101773_7617765204339541568_n.jpg?oh=2611a84cd40d12b2bfe7d8ef1f5361be&oe=578A1309 This is one I'm coaching. This was taken early last season. He was a freshman. I'd been his only coach. He missed half of his 8th grade seas...
- Sat Apr 02, 2016 11:01 am
- Forum: Pole Vault - Advanced Technique
- Topic: Placement vs. Pressure
- Replies: 31
- Views: 121865
Re: Placement vs. Pressure
GV analyze this problem. We have two identical masses moving at the same speed perpendicular to a gravity field on a frictionless surface and in a vacuum (so that we can ignore friction losses). At the same time the both encounter horizontal planes one at 5 degrees and one at 30 degrees. Describe th...
- Mon Feb 29, 2016 10:11 am
- Forum: Pole Vault - Advanced Technique
- Topic: Getting on longer poles/moving grip up
- Replies: 19
- Views: 85330
Re: Getting on longer poles/moving grip up
Kirk, My model for this is again Lazero Borges. OP see the "Swing in Slow Motion" video on youtube. https://www.youtube.com/watch?v=7v6L4p0bNaE Excellent continuous motion. Notice that with Borges as with Bubka and Lavillenie that the angle of the hips tilts down towards the runway.
- Sun Feb 28, 2016 12:44 pm
- Forum: Pole Vault - Advanced Technique
- Topic: Renaud Lavillenie Technique 2015
- Replies: 15
- Views: 74962
- Sun Feb 28, 2016 12:09 pm
- Forum: Pole Vault - Advanced Technique
- Topic: Placement vs. Pressure
- Replies: 31
- Views: 121865
Re: Placement vs. Pressure
From a purely physics perspective we can form an analysis of the event that takes the pole out of the analysis and simply resolves its forces into x and y forces. Once one takes this perspective then what is left is the energy relation of the CoM path where its horizontal or x velocity is relative t...
- Sun Feb 28, 2016 11:14 am
- Forum: Pole Vault - Advanced Technique
- Topic: Getting on longer poles/moving grip up
- Replies: 19
- Views: 85330
Re: Getting on longer poles/moving grip up
This may help. http://www.polevaultfactory.com/PoleVaultFactory/Switch_Point.html I call the distance from take off to switch point the "transit". When you move the grip up you also change the pole take off angle, lowering it, and the transit distance, lengthening it. Now, if you have basi...
- Sat Jan 30, 2016 10:47 am
- Forum: Pole Vault - Advanced Technique
- Topic: GRV: Lavillenie - From Stall Swing to World Record
- Replies: 238
- Views: 536996
Re: GRV: Lavillenie - From Stall Swing to World Record
Japanese pole vaulting robot. In preparation they apply differential equation analysis of pole bend and where... "We focused on the advantage of input bending moment. To compare that we conducted follow experiment. First, we experimentally compared the original buckling model treating C as cons...
- Wed Jan 06, 2016 3:15 pm
- Forum: Pole Vault - Advanced Technique
- Topic: GRV: Lavillenie - From Stall Swing to World Record
- Replies: 238
- Views: 536996
Re: GRV: Lavillenie - From Stall Swing to World Record
Philosophy of Argument In that the nature of this argument is at best ill defined and subject to the whims of whoever is posting, I'm going to try and define it once again. This will not be much about coaching or physics, but the nature of the discussion at hand. In Defense of the Petrov Method I sh...
- Thu Oct 29, 2015 1:20 pm
- Forum: Pole Vault - Advanced Technique
- Topic: GRV: Lavillenie - From Stall Swing to World Record
- Replies: 238
- Views: 536996
Re: GRV: Lavillenie - From Stall Swing to World Record
The problem is that you think there needs to be a "scientific" response to your practical observations. That's not how "science" works, or, you're working backwards. In this, the property of pendulums is proven science which YOUR observation goes against. OR, again, the point of...