Timeline for Escape velocity of satellites
Current License: CC BY-SA 3.0
4 events
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| Nov 26, 2014 at 6:36 | comment | added | fibonatic | @MurtuzaVadharia I do not think that always burning prograde/in the direction of the velocity is the best way of achieving escape velocity. It would be better to burn prograde on one side of the planet, such that you only raise one side of the orbit, assuming there is no significant drag. This is roughly equivalent to burning with higher thrust, split up into multiple burns, which was used by the latest mission of India to Mars. I don't know how the trajectory would look like if you did burn prograde all the time. Initially it might look like a spiral while thrust is small compared to gravity. | |
| Nov 26, 2014 at 5:29 | comment | added | Murtuza Vadharia | Assuming that the amount of fuel is limited, eventually the rocket runs out of fuel. If it hasn't reached or exceeded escape velocity by then, it ends up in an orbit of some type. Once beyond the atmosphere, it's wasteful to spend fuel opposing gravity, so it's best if the thrust is perpendicular to the pull of gravity, so all of the spent fuel is used to increase velocity. Although the thrust is perpendicular to the pull of gravity, the path of the rocket would be similar to an outwards spiral with ever increasing radius, due to the increasing velocity.Am I correct ? | |
| Sep 11, 2014 at 17:18 | history | edited | fibonatic | CC BY-SA 3.0 |
improved format
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| Sep 11, 2014 at 11:16 | history | answered | fibonatic | CC BY-SA 3.0 |