Well, evan, if there were no friction, that would be correct. In reality, there will be some slow down the longer the descent actually takes, but it would still be moving pretty fast by the time it hit the bottom of that hill...but probably not at 92...it might lop off 5-10 MPH due to friction, but maybe not even that much. If MF trains were dropped on no track, they'd probably hit about 94-95 MPH at most, due to wind resistance, so you have to figure that the engineers at Intamin are counting on a further 2-3MPH reduction in speed due to friction from the track and bearings. Any of you not in HS yet will get exposed to all of these mechanics equations in your first year of Physics. It's pretty basic stuff....of course I've done stuff through Calc IV in college and 4 physics classes...but damn I hated college physics. It sucked donkey.
Jman