Matty2sum Posted September 14, 2006 Share Posted September 14, 2006 I would imagine that if you were going fast enough (and omitted things like friction from air and such as they would make you incinerate) you could accelerate yourself fast enough so that you could orbit the planet only inches above the earth's surface. How fast do you haft to go to get centripetal force lift from a sphere/disk? And if you hit escape velocity you would be weightless? Link to comment Share on other sites More sharing options...
insane_alien Posted September 14, 2006 Share Posted September 14, 2006 centripetal force is what keeps you orbiting. its around 7.8 kilometers per second for the surface of earth. escape velocity(11.2km/s) you would also be weightless since your in an orbit. if you are held to the earth by, say a rope attached to a sled on a rail round the earth then it woul be like your trying to fall away from earth. Link to comment Share on other sites More sharing options...
Matty2sum Posted September 14, 2006 Author Share Posted September 14, 2006 Thanks for clearing that up. Link to comment Share on other sites More sharing options...
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