Speed = Displacement/ time, so it will vary.
But seriously, A bet was made between mentors on our team that a team (any team, not specifically ours) in 10 seconds, will be able to:
grab a tetra, stack it on any goal, and then start to grab another tetra
(I believe this was involving tetras from the automated loading station)
Whether or not that will happen is yet to be seen, but.. Maybe.