Jamie Sadlowski Breaks Golf Channel's Simulator - Again
By Torleif Sorenson on 8/21/13


You would think that, after long-drive hero Jamie Sadlowski punched a hole in Golf Channel's simulator last November, that they would have...
  1. replaced the screen on their simulator with something made out of Teflon™, or...

  2. banned Jamie Sadlowski from their simulator.
But at a recent taping of The Golf Fix, J-Dog did it again. In fact, he seemed really proud of having done it with a 7-iron. Program host (and the PGA of America's 2012 National Teacher of the Year) Michael Breed's reaction is priceless.


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[ comments ]
slimpks1850 says:
bad J-Dog, baaaad. J-Dog, baaaaad.

Haaa, In J-Dog's defense - I bet he asked Breed & he replied: LETS DO THIS!
8/21/13
 
mjaber says:
They should put it up against a wall next time they have him on, so the ball rockets back at him. Dangerous, I know, but I still think it would be hilarious, as long as no one got hurt. Especially if they didn't tell him about it before hand.
8/21/13
 
slimpks1850 says:
^ ^ ^ or just give him one of those exploding golf balls.
8/21/13
 
jasonfish11 says:
I'm lost on how no one else has broken this machine other than the 2 long drive guys. I mean I find it hard to believe no one has hit a ball with as much force as Jamie just hit his 7-iron into this thing.

Im no physicists but force is just mass times acceleration. For the most part all golf balls have the same mass. So you are telling me no one has hit any ball that accelerates faster than Jamies 7-iron into this machine?
8/21/13
 
jasonfish11 says:
Maybe that is true.

Anyone know what the ball speed is for Jamies 7-iron? I cant watch the video (if its on there).
8/21/13
 
slimpks1850 says:
The video was there for me.

Breed:
"what do you mean we're going to get in trouble for that"?

I'm also thinking they're doing this on purpose or whatever for more of the same pub... maybe not tho. either way, funny.
8/21/13
 
mmontisano says:
I don't know his numbers, but this article has some of his yardages, and his 7 iron goes 240. so yeah, that's some hella ball speed.

www.golf.com/tour-and-news/super-freak-longest-h
8/21/13
 
jasonfish11 says:
I dont know the math to figure out ball speed with a 240 yard 7i but I do know its higher than a 240 yard driver due to increased launch angle.

My work blocks streaming video is the only reason I cant see it. Not that its embeded wrong.
8/22/13
 
jrbizzle says:
Jamie's clubhead speed for driver is about 150, ball speed just over 210. Average arm length of someone his height is about 33", so assume his neck is the axis of rotation and straight left arm). His driver is 48", average 7 iron is about 37". Assume his left hand is about 4" down on grip. Throw away the off center axis of his neck/spine for ease's sake.

Radius of driver swing = 33 + 48 - 4 = 77".
Radius of 7 iron swing = 33 + 37 - 4 = 66".

2*pi*r = 483.56" circumference of driver rotation
2*pi*r = 414.48" circumference of 7 iron rotation.

414.48/483.56 = 7 iron swing would be 86% of driver speed, assuming his shoulder turn speed is constant.

Clubhead speed would be 150 * 0.86 ~ 128 mph. If we assume same spring off 7 iron as driver, and neglect loft due to short distance to screen, then ball speed is still 1bout 180 with 7 iron.
8/22/13
 
jrbizzle says:
Bubba Watson's driver clubhead speed is around 128, so same as Jamie's 7 iron. Wow.
8/22/13
 
jasonfish11 says:
There are too many assumptions/short cuts for that to be reliable. It may be close to accurate, but I dont think that is a reliable way to determine his 7i club head speed.

The swing weight of the 2 clubs is different which means it would be impossible for his max shoulder turn speed to be the same with both clubs.

Also ball speed is measured time over lateral distance (not the distance the ball travels). So if his Dr and 7i had the same swing speed the ball speed (and therefore force) would be lower with the 7i due to the higher launch angle. And that is magnified since we know his 7i swing speed is slower.
8/22/13
 
jasonfish11 says:
You would need to know his launch angle of his 7i. Assuming no roll in that 240 yards then you could solve for ball speed like this.

D = (vin^2 *sin2theta)/9.8

D=distance in meters (240yards = 219.46m)
vin= initial velocity
theta= launch angle
8/22/13
 
jasonfish11 says:
He is sponsored by adams. Their 7is seem to be 32*. Assume his effective loft at impact is 4* less his launch angle is 28*

This brings his ball speed to 155.62 mph with a 7i.

That is still nuts.
8/22/13
 
Torleif Sorenson says:
jrbizzle and jasonfish11: You guys are alternately cracking me up and giving me a mathematics headache. If you keep this up, you're both gonna wind up on an episode of The Big Bang Theory!
8/22/13
 
jrbizzle says:
Not really going to get into this too deep, but since the screen is so close to the area of impact, the effect of launch angle, COR, etc is all but negligible. We're talking the fact that the ball broke the screen, not how accurately the launch monitor replicates the shot. Launch angle's effect on ball speed has more to do with how long a ball will carry, roll, etc, not how hard something hits a fixed object 10 yards away.

Either way, his clubhead speed with a 7 iron is stupid fast, and therefore the ball speed would be faster than most player's drivers.
8/22/13
 
jasonfish11 says:
launch angle has a large effect at any distance greater than 0. ball speed is measured as linnear speed not angular speed.

If it were angular speed you would be correct.

Think of it this way. If you get punched by mike tyson would it matter if he hit you clear in the center of your forehead or a glancing blow off the side of your head.

As the balls launch angle increases the angle at which it hits the screen decreases, therefore less energy is transfered from the ball to the screen
8/22/13
 
jasonfish11 says:
Im not a huge physics nerd although I do like it but its possible some of that stuff is missaplied, but launch angle (or angle of attack when the ball hits the screen)most certainly affects how much force is exerted on the screen
8/22/13
 
DougE says:
Which one of you will play Sheldon on the Big Bang Theory and which will play Leonard? JFish, you might want to opt for Leonard. Screw physics, he ends up with Penny!
8/24/13
 
jasonfish11 says:
my wife likes Sheldon best
8/24/13
 
jrbizzle says:
Launch angle would have an effect like you describe on "ball speed" in as measured linearly. But impact force is mass and speed, and at an angle the force is still applied to the screen but split into horizontal and vertical forces proportionate to the angle of impact. Both of these are applicable when discussing a broken screen.

Is anyone else bored yet?

Oh, and DougE - I hate that show.
8/25/13
 
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