- #1
Jlemon
- 4
- 0
Hello to all.
I am a golf course designer and am researching information on the slope and the roll of a golf ball on different greens speed.
I am attempting to determine a golf ball rolling on "X" slope will not stop on "Y" surfaces(friction coefficient)
My interest is in a golf ball rolling on different speed greens (surfaces with different rolling friction coefficient) and measuring that info and then determining the slope that a ball will not stop rolling.
We use a stimpmeter now but it is primitive at best.
I intend to use this for determining the maximum slope for putting greens based on speed of greens.
A few tidbit of info:
The weight of a ball is 1.62 ounces
The stimpmeter we us to determine friction coeffient is a 3' bar raisedto a 20.5 degree slope
The distance we call "green speed" is the distance the ball travels after leaving the 3' bar on a level surface.
This Green speed number is a industry standard.
Initial work I have done in the field shows a ball will not stop rolling at differning speeds and slope and can be plotted.
I wish calculate the the graph using physics and have no way to deterime rolling friction coefficients with a golf ball. (which mustallso have a friction coefficient?)
Any one willing to advise me (remember I am a layman not educated in physics enough to know much more than what goes up must come down :)
Jerry
jlemons@comcast.net
I am a golf course designer and am researching information on the slope and the roll of a golf ball on different greens speed.
I am attempting to determine a golf ball rolling on "X" slope will not stop on "Y" surfaces(friction coefficient)
My interest is in a golf ball rolling on different speed greens (surfaces with different rolling friction coefficient) and measuring that info and then determining the slope that a ball will not stop rolling.
We use a stimpmeter now but it is primitive at best.
I intend to use this for determining the maximum slope for putting greens based on speed of greens.
A few tidbit of info:
The weight of a ball is 1.62 ounces
The stimpmeter we us to determine friction coeffient is a 3' bar raisedto a 20.5 degree slope
The distance we call "green speed" is the distance the ball travels after leaving the 3' bar on a level surface.
This Green speed number is a industry standard.
Initial work I have done in the field shows a ball will not stop rolling at differning speeds and slope and can be plotted.
I wish calculate the the graph using physics and have no way to deterime rolling friction coefficients with a golf ball. (which mustallso have a friction coefficient?)
Any one willing to advise me (remember I am a layman not educated in physics enough to know much more than what goes up must come down :)
Jerry
jlemons@comcast.net