this post was submitted on 24 Feb 2024

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China's hyperloop maglev train has achieved the fastest speed ever for a train at 623 km/h, as it prepares to test at up to 1,000 km/h in a 60km long hyperloop test tunnel. (robbreport.com)

submitted 9 months ago by Lugh to c/futurology

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[–] GbyBE@discuss.tchncs.de 2 points 9 months ago (1 children)

Did you also factor in that the train needs to come to a full stop in that 2km as well?

[–] LostXOR@kbin.social 2 points 9 months ago* (last edited 9 months ago)

Yes, I calculated the acceleration required to accelerate to 387MPH (173m/s) in 1km.
v^2 = 2ax
(173m/s)^2 = 2a(1000m)
a = 14.96m/s^2 = 1.53g