this post was submitted on 24 Feb 2024
158 points (94.9% liked)

Futurology

1757 readers
254 users here now

founded 1 year ago
MODERATORS
you are viewing a single comment's thread
view the rest of the comments
[โ€“] [email protected] 1 points 8 months ago (1 children)

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

[โ€“] [email protected] 1 points 8 months ago* (last edited 8 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