what the heckwas that runner?

[Dakota]

Originally Posted by Big Slick

...technically you have an acceleration = zero as my engineer friend of mine told me...

No, to be stopped, technically, you have velocity = 0. Acceleration (rate of change of velocity) may or may not be zero, and it certainly will NOT be zero at the first instant of v=0. Also, physics only requires you to go through at least a fractional time where v=0 if you change directions from a single point. Unless a runner reverses direction, it is unlikely she stopped on a single point; more likely she did maintain some forward velocity.

Regardless, I seriously doubt the NCAA rule book meant for umpires to refer to Newtonian Physics to make a judgment. It is more likely "stop" means "visibly stop."