From the speed of the S-Korean express train to the speed of light 

00:00 KTX Pyeongtaek Station. 127km/h
00:13 EMU maximum speed 320km/h
00:21 LINEAR Chuo Shinkansen 500km/h
00:27 HTX Hypertube 1,200km/h
00:36 F22 Raptor Fighter 2,400km/h
00:45 K2 rifle 3,300 km/h
00:51 HAWC US hypersonic missile 6,200 km/h
01:05 Minuteman Intercontinental Ballistic Missile 28,400 km/h
01:18 KTX speed
01:26 Passed a little while ago.
(used a translator)
* The KTX train (total length of 388m) took 11 seconds.
The speed is about 127km/h after passing by.
* based on 127km/h
-EMU-320 operating maximum speed 320km/h (2.52x)
- Japan Magnetic Floating Train operating at maximum speed of 500km/h (3.94x)
Maximum speed of 1,200km/h (9.45x) of Hypertube in Japan
-F22 Raptor fighter maximum speed of 2,400km/h (18.9x)
K2 rifle speed 920m per second 3,300km/h (25.98x)
U.S. hypersonic missile that succeeded a few days ago, 6,200 km/h (48.2 times speed)
ICBM Minuteman Intercontinental Ballistic Missile 28,400 km/h (224x)
- 300000km/h per second, 1.08 billionkm/h (Ox)
I made it out of.
Additional explanation: • KTX 850만 배속
Original: • KTX 평택역 통과