Why spacex takes 19 hours for reaching ISS

The crew demo launch (Launch America) mission is successful launched at 30-May-2002 with two astronauts into ISS (International space station)

It takes 19 hours to reach ISS

Why it is a long journey ?

ISS is located at altitude of 400km but crew dragon rocket can easily reach within 10 mins

But in this mission they going with an two astronauts so the acceleration must be low and it revolves the earth slowly and get in to its orbit Maximum an astronaut will feel safe Upto 3times the gravity (3g-3*9.81 ≈30m/s2)

Mission has

Two technological updates

one is touchscreen display technology

And second one is the astronaut suit this suit more comfortable than before it was designed by famous Hollywood costume designer how worked in

Captain America- civil war, Batman Vs Superman , Wonder women

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