CNN Early Start With John Berman and Christine Romans May 14, 2015 09:53:00
About 97 metric tons. that is pushing up quarter million pounds. if it is traveling 50 miles an hour as it should have been here all of the physics work out fine. yes, there is force to the outside of the curve just like a car going around the corner quickly, but it is all balanced out. push it up to 100 miles an hour and that force becomes greater. maybe up here with a low center of gravity with heavy amount of weight sitting low, it doesn't tip over. not necessarily the same back there. go back to the passenger cars and that's where we had passengers describing the feeling of the cars flying...
Source: archive.org