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Thread: The Arc on Joe's ball.
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Re: The Arc on Joe's ball.
How far is Flacco able to throw a football maxed out, stepping into it and everything? I can throw a football 58 yards actually. (though not on the run, haha. Putting my entire everything into it.)
By the way, I just straight-up don't believe Kyle Boller threw the ball through the uprights from 60 yards out on his knees. Was that supposed to be true?
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01-15-2013, 06:25 PM #74
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01-15-2013, 06:38 PM #75Regular 1st Stringer
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01-15-2013, 06:50 PM #77Rookie Poster
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Re: The Arc on Joe's ball.
Kyle, I got a total arc length of 66.3 yards. And yes Cpt, that is quite different from what you got.
Cpt, maybe I’m misreading this but it looks like in your calculation of max height attained, you used 22.175m/s which strikes me as a total speed instead of vertical speed. Either way, I did a time step simulation which is a very different analysis than the one you performed though we definitely shouldn’t be getting results this different. I could easily have errors in my work as I didn’t put a great deal of time into this.
I’ll give a brief overview of my method
Drag Force = .5 * density * vel^2 * Reference Area * Coefficient of drag (~.055 for spinning football)
Y-accel = - Gravity – [ Drag * sin(pitch angle) ] / mass_of_football
X-accel = - [ Drag * cos(pitch angle) ] / mass_of_football
Y-vel = Y-vel_old + Y-accel * delta_time <- (same format for x, or arc velocity)
Y-position = y-position_old + (y-vel_old + y-vel)/2 * delta_time <-(same format for x, or arc length)
These are performed at each successive time step until y position is less than zero (ball hits ground).
There are some other minor steps and a number of assumptions that I’ve left out.
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01-15-2013, 06:52 PM #78Regular 1st Stringer
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01-15-2013, 07:35 PM #79On The Practice Squad
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Re: The Arc on Joe's ball.
Roland you've hit the nail on the head. I watched this play over and over [dvr] , frame by frame. You can plainly see when Joe moves up in the pocket, Moore spys Pitta wide open in the middle of the field, he goes towards Pitta and then sees Joe lean back and launch one. He didn't have time to get back to position himself to cover Jones properly. IT WAS A THING OF BEAUTY - Gonz
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Re: The Arc on Joe's ball.
This thread needs a gif.
If it messes up the thread for those with slow connections let me know and I'll take it off.
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01-26-2013, 12:12 PM #81Pro Bowl Poster
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Re: The Arc on Joe's ball.
Oops...I see someone else already did a really nice job on the physics.
Last edited by Filmstudy; 01-26-2013 at 12:39 PM.
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Re: The Arc on Joe's ball.
I've read through three pages of math and have yet to find one person that would get more than a 65 on the test. lol.
I sucked at Calculus, Physics and never took statistics, so I guess I'm up a creek too. lol."Please take with you this final sword, The Excellector. I am praying that your journey will be guided by the light", Leon Shore
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02-27-2013, 07:12 PM #83
Re: The Arc on Joe's ball.
http://www.youtube.com/watch?v=FOeL1....SJ12dtby.dpuf
From a fan in Denver......too funny!
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