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Re: Velocity???
there has been a lot of debate and discussion on this subject, esp regarding how much air resistance slows the ball down (air is still present in a room, even when its not moving)
and also the effect that spin has on the distance a ball will travel.
The two answers that seem to have the most validity are making a time-gate with two optical sensors, that the ball passes through as it exits your bot, or using a radar gun.
If you search this forum on " muzzle velocity " you will find a lot of posts on the subject.
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