Timeline for Does gravitational force on a satellite only change the tangential velocity of the satellite?
Current License: CC BY-SA 4.0
7 events
| when toggle format | what | by | license | comment | |
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| Nov 25, 2019 at 2:32 | comment | added | dmckee --- ex-moderator kitten | The problem is the statements about kinematics independent of what causes the force. You are expressing them in coordinate language that is only correct for Cartesian coordinates but using the language of non-Cartesian description. And that is simply wrong. | |
| Nov 24, 2019 at 19:44 | comment | added | my2cts | @dmckee Are you trying to say that the rule I am attempting to establish, aka Newtonian gravity, is coordinate dependent? | |
| Nov 24, 2019 at 18:22 | comment | added | dmckee --- ex-moderator kitten | Uh ... in a circular orbit the acceleration is radial, but the radial velocity remains fixed at zero. The rule you are trying to state only works in Cartesian coordinates. | |
| Nov 23, 2019 at 17:20 | comment | added | my2cts | @dmckee Indeed. So if the tangent velocity has a component in the radial direction, that component changes. | |
| Nov 23, 2019 at 15:57 | comment | added | dmckee --- ex-moderator kitten | Lots of things that are true and easy to explain about circular orbits are not true about non-circular orbits and the simple explanations generally fall apart in those cases. Consider the velocity at perigee and apogee for a elliptical orbit. They are different in magnitude, in both cases they are purely in the angular direction, and it is gravity that causes them to be different. | |
| Nov 23, 2019 at 6:45 | review | Low quality answers | |||
| Nov 23, 2019 at 7:06 | |||||
| Nov 23, 2019 at 6:27 | history | answered | my2cts | CC BY-SA 4.0 |