Recent content by golfz

PatrickPowers, I was looking for something similar to you answer 'the 72 probably has a higher power transfer ratio but considerable doubt remains'. I also found on the internet something like 'the absolute uncertainty is less than the difference in uncertainty hence it cannot be fully...

I am trying to figure out how to refer to two overlapping uncertainty results. I have to write a conclusion and I find it difficult to explain. Even now it may seem unclear as to what I am referring to so I will provide an example. This is directly from my conclusion. 'The 72 rated golf ball...

I am trying to figure out how to refer to two overlapping uncertainty results. I have to write a conclusion and I find it difficult to explain. Even now it may seem unclear as to what I am referring to so I will provide an example. This is directly from my conclusion. 'The 72 rated golf ball...

http://cdn.thesandtrap.com/4/4a/4a975260_Untitled5.jpeg This graph is easier to interpret, however considering it is part of a research project, I thought it would be better to include calculations. Is there any other way I could calculate something out of any of the following vaiables: Launch...

Those ratings are based on USGA golf ball compression ratings. All golf balls are in this manner, and the higher the number, the less compressible the ball. I myself conducted an experiment to find the COR of the golf balls, except that was for a golf ball dropping on concrete. The smooth golf...

I believe the cause for that is an error in the simulation program. For each golf ball I did not iindepenantly input the drag coefficient for the golf balls. I believe the program assumed the smooth golf ball had the same drag coefficient as a dimpled golf ball.

I understand why you think you are wasting your time. I just wanted to communicate my ideas across and did not bother to write with care. With collecting data I actually meant experiement. I am doing an extended essay so it is not that simple. The equation I got off the internet was used as it...

so its not an easy problem?

Forgot to include that data. The backspin, ball speed, clubhead speed etc was calculated by a simulation program (Golf Achiever), which involves a golfer hitting golf balls on a mat with lasers. The simulation program was programmed there was no wind affecting the flight path of the golf balls...

I am almost done in my research on golf balls, however I found something unusual which I can't seem to find an explanation for. After collecting data on a golf swing (golf ball speed, club head speed, backspin, distance etc.) I created a few graphs. Once of them was a force vs distance graph...

would you advise me do steer away from such a topic? Is the analysis of the club-ball impact reasonable to research for an IB student?

You got any computer program which does this?

I was considering doing as you suggested. I actually wished to compare the data from different type of golf balls, hence I would get different curves as the dimples on the golf balls would be different. In fact I found another way to analyse the physics of this. I will look at the club-ball...

Thanks for your reply. So I have been researching this topic for hours on end and realized I had a problem. Firsty you mention fluid flow equations. For example does this include the following: Fres=-C1vr+C2v2r2 Which can be used to find the terminal velocity in a fluid. Secondly, what is a...

are there any other methods that I can use to obtain a similar graph for analysis. I would like to analyze the air flow around a golf ball.