LughM to Futurology@futurology.todayEnglish • 4 months agoChina'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.comexternal-linkmessage-square41fedilinkarrow-up1175arrow-down19
arrow-up1166arrow-down1external-linkChina'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.comLughM to Futurology@futurology.todayEnglish • 4 months agomessage-square41fedilink
minus-squareLostXORlinkfedilink6•edit-24 months agoI got an acceleration of 1.5G for the test, did you forget a factor of 2 or something? Still certainly not an enjoyable experience for passengers, but I assume it would accelerate over a much longer distance if a full track was built.
minus-square@threelonmusketeers@sh.itjust.workslinkfedilinkEnglish4•4 months agoI think I’d probably be fine with 1.5Gs as long as the jerk and snap were low.
minus-squareLostXORlinkfedilink2•4 months agoAdding in Earth’s gravity it’s about 1.8G total, applied at a weird angle, which might be too much for some people.
minus-square@GbyBE@discuss.tchncs.decakelinkfedilinkEnglish2•4 months agoDid you also factor in that the train needs to come to a full stop in that 2km as well?
minus-squareLostXORlinkfedilink2•edit-24 months agoYes, 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
I got an acceleration of 1.5G for the test, did you forget a factor of 2 or something? Still certainly not an enjoyable experience for passengers, but I assume it would accelerate over a much longer distance if a full track was built.
I think I’d probably be fine with 1.5Gs as long as the jerk and snap were low.
Adding in Earth’s gravity it’s about 1.8G total, applied at a weird angle, which might be too much for some people.
Did you also factor in that the train needs to come to a full stop in that 2km as well?
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