FiveFrameSwing
Banned
3. Regarding the original question posed in this thread: Assuming the ball is released at the same velocity and at the same location, I suspect there is very little difference in the time from release to home plate between topspin and bulletspin. Both pitches lose speed due to air resistance. There is some evidence from MLB data (sliders have a large amount of bulletspin) that the air drag is a tiny bit less on pitches with bulletspin than on other pitches, but the difference is too small to be of much practical significance. The point about there being more sideways or up-down movement on the topspin/sidespin pitch than on the bulletspin pitch is not relevant. The motion along the pitcher-catcher line is independent of any forces in the up-down or sideways direction, a fact that we teach early on in introductory physics classes.
This is an important point. Please clarify.
Given three pitches with different spins ... 1) bullet spin; 2) 6-12 spin; and 3) 12-6 spin ... all released at the same location/height, speed, and initial trajectory .... how would the profiles differ?