How is it the ISS can travel at 17,400 MPH, but astronauts seem unaffected at all?

Question

EDIT: Thank you all for your kind yet informative responses!

In: 0

Answer 1

Because their bodies are moving at the same speed of the station, so they don’t experience motion.

If the station were to quickly accelerate/slow down, then the astronauts would be affected. The station is hardly changing speed though. The astronauts definitely do get affected when their rocket is accelerating quickly to 17,000+ MPH.