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Thoughts on the new Roadster’s “over 250mph” top speed claim by Elon

Discussion in 'Roadster 2022' started by ecarfan, Nov 17, 2017.

  1. Brando

    Brando Active Member

    Joined:
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    #101 Brando, Aug 13, 2018
    Last edited: Aug 13, 2018
    considerably faster than that - I'll let readers calculate the mph from below numbers (double check km to mi also)

    "Escape velocity is the speed at which an object must travel to break free of a planet or moon's gravitational force and enter orbit. A spacecraft leaving the surface of Earth, for example, needs to be going about 11 kilometers (7 miles) per second, or over 40,000 kilometers per hour (25,000 miles per hour), to enter orbit."
    NASA - Escape Velocity: Fun and Games

    ___________min max
    Roadster:_19.9 33.9 km/sec [12.4 mi/sec 21.2 mi/sec]
    Earth:_____29.3 30.3 km/sec
    Mars:_____22.0 26.6 km/sec
    Current speed of Tesla Roadster which is moving toward the Asteroid Belt?
    note: see the EDIT section which is where the above table comes from
    and now seems it might be closer to 36.3 km/sec ... someone smarter than me and more patient will get even better numbers, I suspect. I just know it is really, really fast and still takes years to travel just to Mars and back... orbital mechanics doesn't seem very mechanical to my simple mind.o_O

    even more details
    Starman/Roadster in a=1.795 AU orbit, now what's the method to this madness?
     

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