Just watched episode 1 of Star Trek Discovery. Commander Burnham takes a jet-pack to an unknown ship 2,000 km away. She has to go and return in 20 minutes. So she has to cover the 2,000 km in less than 10 minutes. That's a long way, over 1,200 miles in 10 minutes from a dead start. Is the acceleration reasonable? Let's assume linear acceleration to 1,000 km in 5 minutes, then linear deceleration the rest of the way. I decided to use a new website I found to solve such things, fxsolver. Plugging into the linear acceleration forumla 1,000,000 meters in 300 seconds from V0 =0 and X0 = 0 gives an acceleration of 22.22 m/s^2. Since 1G = 9.8 m/s^2, that's a sustained push of 2.2G forward then back for the 20 minute ride. That's uncomfortable, but looks like humans can probably tolerate up to 4G sustained. So though the top speed is around 15,000 mph, it's still within the range of possibility. I doubt she could dodge asteroids at top speed, but that's another question.

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