Researchers at China’s National University of Defence Technology have successfully accelerated a tonne-class vehicle to a record speed of 700 km/h (435mph) within just two seconds on a 400 metre (1,310-foot) magnetic levitation test line, and brought it safely to a stop. The test speed has set a new global benchmark, making it the world’s fastest superconducting electric maglev to date. This same force that flung a sledge down a short track could fling a rocket into the sky. It could even…
700km/h would be about 200m/s in 2 seconds, so about 10g. Survivable.
I suppose. Enough to make most folks pass out, though.
For two seconds, it’s survivable while maintaining consciousness, and the direction is especially important. 10 G’s down is particularly effective at inducing unconsciousness because it’s literally pulling oxygenated blood down from your brain. 10 G’s towards your back is going to be extremely uncomfortable, but the blood is more or less going to be ok.