logistics for hitting the video board

rkell87

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ok so alot of people say it wont be hit in game situation and i agree but i wanted to find out if say maybe the punter gets a good punt off as far as distance and hang time but went straight down the middle?

so i got all the facts i could so i have a starting point.

i found that average hang time is around 4.6 seconds

ray guy had an average of 42 yards a punt for his career so thats what ill use.

i used the general ballistics calc. here http://hyperphysics.phy-astr.gsu.edu/Hbase/traj.html#tra3

so this calculator tells you where your projectile is at the time you give it based on the info you put in...so to find the peak you have use half the time and all distances are in half as well but thats fine because the first half and second half of the the arc are the same.

so putting in 2.3 as time and playing around with the angle of launch and the launch speed this is what i found.

25 m/s(55 mph) launch(kick) at 68.11 degree angle will put the ball at the height of 27.433 meters(90 feet is 27.432) at 2.3 seconds(half ** the average hang time) and the ball will have covererd a distance of 21 meters(23 yards) which would land the ball at 46 yards just over ray guys average and we all know 46 yards is doable. i also think 55mph kick and launch angle sounds about right as well. now what we dont know is if 46 yards can be done in combo with 4.6 seconds or more of hangtime i would lean toward really possible.

i was in the boat of "wont be hit" but now im not as sure...anybody with more or better info please feel free to prove me wrong or stupid:D
 

DemonBlood

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rkell87;2911962 said:
ok so alot of people say it wont be hit in game situation and i agree but i wanted to find out if say maybe the punter gets a good punt off as far as distance and hang time but went straight down the middle?

so i got all the facts i could so i have a starting point.

i found that average hang time is around 4.6 seconds

ray guy had an average of 42 yards a punt for his career so thats what ill use.

i used the general ballistics calc. here http://hyperphysics.phy-astr.gsu.edu/Hbase/traj.html#tra3

so this calculator tells you where your projectile is at the time you give it based on the info you put in...so to find the peak you have use half the time and all distances are in half as well but thats fine because the first half and second half of the the arc are the same.

so putting in 2.3 as time and playing around with the angle of launch and the launch speed this is what i found.

25 m/s(55 mph) launch(kick) at 68.11 degree angle will put the ball at the height of 27.433 meters(90 feet is 27.432) at 2.3 seconds(half ** the average hang time) and the ball will have covererd a distance of 21 meters(23 yards) which would land the ball at 46 yards just over ray guys average and we all know 46 yards is doable. i also think 55mph kick and launch angle sounds about right as well. now what we dont know is if 46 yards can be done in combo with 4.6 seconds or more of hangtime i would lean toward really possible.

i was in the boat of "wont be hit" but now im not as sure...anybody with more or better info please feel free to prove me wrong or stupid:D

I didn't know Batman was a member on this board. :eek:
 

hairic

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The punt in your scenario is only a 31 yard punt, not 46. You didn't account for the negative 13-15 yards that's present in the punt formation. Lower the angle and lower the velocity.

Reason for lower velocity: that punt if perfectly kicked (45 degree angle), would go 89 yards in the air for a 74 yard punt, not including bounce. If kicked from back of own endzone and a bounce included, it would have a chance at being a 120 yard punt.
 

rkell87

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hairic;2911974 said:
The punt in your scenario is only a 31 yard punt, not 46. You didn't account for the negative 13-15 yards that's present in the punt formation. Lower the angle and lower the velocity.

Reason for lower velocity: that punt if perfectly kicked (45 degree angle), would go 89 yards in the air for a 74 yard punt, not including bounce. If kicked from back of own endzone and a bounce included, it would have a chance at being a 120 yard punt.

ok so i messed up i need to find what speed the ball needs to be kicked at for it to reach the ground agian at 4.6 seconds...and now finding that with a 45 degree angle...

ok that about 32 m/s(71 mph) at 45 degree angle it wont hit the board but comes close but it travels 104 meters in 4.6 seconds...lol that cant be right
 

rkell87

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rkell87;2911977 said:
ok so i messed up i need to find what speed the ball needs to be kicked at for it to reach the ground agian at 4.6 seconds...and now finding that with a 45 degree angle...

ok that about 32 m/s(71 mph) at 45 degree angle it wont hit the board but comes close but it travels 104 meters in 4.6 seconds...lol that cant be right

ok so what im finding is that at 4.6 seconds hang time you cant hit 90 feet up and get the ball to travel 55 yards(40 yard punt).

i really need to know what is humanly possible for the speed of the ball kicked
 

jackrussell

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In layman's terms.......


graph.gif
 

rkell87

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ok so found a video of a punt 65(total) yards hang time 5 sec. which i found to be kicked at roughly 65 degrees at 27m/s which i could find because i knew the time it took from kick to ground and distance traveled i went to see where it was at 2 seconds and it would have already hit the board so a fifty yarder with 5 seconds hang time could hit it...i got to go to bed now my brain is fried and im prolly completly wrong please god let there be an astro physicist on this board lol
 

NinePointOh

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As I mentioned in the thread where I first used the ballistic trajectory model, the website doesn't factor in atmospheric drag or wind currents, so the ball wouldn't actually go that high and far unless you're punting in a vacuum. There are some things a graphing calculator can't emulate.
 

rkell87

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NinePointOh;2912008 said:
As I mentioned in the thread where I first used the ballistic trajectory model, the website doesn't factor in atmospheric drag or wind currents, so the ball wouldn't actually go that high and far unless you're punting in a vacuum. There are some things a graphing calculator can't emulate.

true but i cant imagine that it would make such a difference as to make it impossible plus cowboy stadium is a dome most of the time so you really dont have to worry about wind currents. also i just found the angle and speed of the kick based on the absolutes of the time the ball was in the air and the distance traveled so since that actually happened and i found it as if they were in a vacuum then the ball would have had to been kicked harder to overcome those forces right? which it was cause it happened right?

i found that ray guy holds the record for longest hang time at 8 seconds but couldnt find how far the ball went...anybody(adam) have that info?
 

bbgun

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It's only a matter of time before Jerry or the league asks the kickers to stop trying to hit the thing in warmups. They're not doing any real damage to the screen, but it's bad publicity.
 

rkell87

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i think thread starters should be able to delete post they dont want in their threads
 
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