...it would be too fast for the track, it would create lateral g's in some inversions as the ride would have been designed to go slower.
This is technically incorrect. On paper both a 4 row cart and a 2 row cart would have the same maximum speed as all objects accelerate towards the ground at a speed of 9.81 metres per second per second. However, the 4 row cart would have a larger kinetic energy and would therefore resist friction more than a 2 row cart. So in practice you often find that heavier cars will complete the circuit faster than lighter ones. This is shown by the fact that AT use weighted dummies in tests, to ensure that the cart travels fast enough to complete the circuit without stalling.
That correction is also incorrect. Objects do in fact accelerate at the same rate under the influence of gravity at 9.81m/s but this has nothing to do with the objects terminal velocity, acceleration due to gravity just tells you how quickly the object reaches its terminal velocity, the objects actual terminal velocity is different. The 2 row car would have a different terminal velocity to the 4 row car. Otherwise what you're saying here is that all roller coasters independent of train size and weight would all have the same speed which is incorrect. Also you don't accelerate with a speed of you accelerate at a rate of. I know this isn't a physics forum but please try not to post facts if they are not indeed facts. The mass of the object contributes to the kinetic energy and momentum of each train but the velocity of the train is independent of the mass any object of any mass can travel at any speed given it has enough driving force. (Physics A-level student)
I'll appreciate your enthusiasm, but you're both sort of wrong and sort of right.I made a post about this on NLE explaining what the differences between car sizes and dummies might do. It's basically only just down to testing track stress.
A 2 row and 4 row car would realistically have very similar maximum velocities, they do not operate at such speeds that terminal velocities would be considered. Drag & sons are all related to surface areas, not masses. As drag is a force however, it'll have a greater effect on lower masses than higher ones, meaning a dummyless car will have a greater decrease in acceleration than that of a weighted car.
(2nd Year Physics undergraduate @ Edinburgh Uni )
This isn't a physics thread anyway..
I can't wait for the Smiler to reopen, but at the same time I really, really don't want the thing rethemed. It's realistic as right now the theme completely makes the ride considerably more horrifying, but my god if I didn't fall in love with its insanity. I can't see what they could do.