How Do You Calculate Golf Ball Backspin from Speed and Launch Angle?

[aku_wekara]

Calculate golf ball backspin??

Hi,

Just wondering if anyone could tell me the best way to calculate the approx backspin (rpm) a golf ball given ball speed and launch angle figures?

Or just how to go about getting average backspin measurements of balls hit at different angles and speed? It doesn't have to be super accurate just averages and approximations.

Thanks in advance.

Andy.

 

[Loren Booda]

http://ffden-2.phys.uaf.edu/211_fall2002.web.dir/josh_fritts/swing.html

“The ball leaves the tee at about 140 mph with a backspin of fifty to sixty rotations per second...This will maximize the distance of your drive.

 

[aku_wekara]

Thanks but there's nothing really on how you could calculate the amount of spin with different launch angles and speeds.

 

[Loren Booda]

Maybe this will narrow down the field:

http://www.google.com/search?hl=en&q=%22physics+of+golf%22+backspin+speed+angle&btnG=Search

 

[aku_wekara]

Thanks i'll have a look.

 

[aku_wekara]

anyone else?