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# Working on my Mathematical investigation watch

1. I am currently working on my mathematical investigation. I know how to model the trajectory of the football ball but I am wondering what would be the difference for the tenis ball. Assuming that for a football ball it is the free shot. what should I take into consideration
2. (Original post by BioOx)
I am currently working on my mathematical investigation. I know how to model the trajectory of the football ball but I am wondering what would be the difference for the tenis ball. Assuming that for a football ball it is the free shot. what should I take into consideration
What investigation? You are assuming we will all know. If this is assessed work, we can't help you as that would be cheating.
3. (Original post by Mr M)
What investigation? You are assuming we will all know. If this is assessed work, we can't help you as that would be cheating.
It is like an EPQ, and I AM SUPPOSED TO RECEIVE help that my teacher is not giving to me
4. (Original post by BioOx)
It is like an EPQ, and I AM SUPPOSED TO RECEIVE help that my teacher is not giving to me
It's not much like an EPQ as the teacher supervising this would not usually have sufficient knowledge to provide subject specific help.

If you are modelling balls as projectiles you will need to allow for air resistance. There is a standard way to do so which you will be able to find in 5 minutes using Google. You could also investigate the Magnus effect.

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