I am interested in determining how to calculate the following ...
100mph - fastball = 146.7 ft per second
58ft - distance from point of release (pitchers hand) to contact with cathers mit - approximately.
60 frames per second - HD Video frame rate per second.
I want to know (approx.) how many frames of HD Video it will take to reach the catchers mit.
What is the proper expression to figure this out ?
Thanks, for any help.
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Our forum has been available for many years. In September 2014 we decided to switch it to read-only mode. Month after month we saw less posts with questions and answers from real people and more spam posts. We were spending more and more resources cleaning the spam until there were less them 1 legitimate message per 100 spam posts. Then we decided it's time to stop.
All the posts in the forum will be available and searchable. We understand there are a lot of useful information and we aren't going to remove anything. As for the new questions, you can always ask them on convert-me.com FaceBook page
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Is this correct ?
by collinsrhp » Thu Jun 05, 2008 11:36 pm
100mph = 146.7 ft per second
divide it by 60 frames of HD video and you get
2.445 = feet per frame or per 1/60 of a second.
Next divide the 58 feet from release to mit by the 2.445 feet per second
23.721 frames of HD video to reach the mit.
Is this correct ?
Of course this is based on an average speed. A 4 seam fastball is estimated to slow down and average of 4 - 8 mph by the time it reachs the mit. So while the speed at release may 100mph by the time it reaches the plate it may be anywhere of 92-96 mph (approx.).
divide it by 60 frames of HD video and you get
2.445 = feet per frame or per 1/60 of a second.
Next divide the 58 feet from release to mit by the 2.445 feet per second
23.721 frames of HD video to reach the mit.
Is this correct ?
Of course this is based on an average speed. A 4 seam fastball is estimated to slow down and average of 4 - 8 mph by the time it reachs the mit. So while the speed at release may 100mph by the time it reaches the plate it may be anywhere of 92-96 mph (approx.).
- collinsrhp
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- Joined: Thu Jun 05, 2008 11:19 pm
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