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ritwik06

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Eg. electron in 1st orbit of H atom

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- Thread starter ritwik06
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ritwik06

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Eg. electron in 1st orbit of H atom

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Mapes

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- #3

dynamicsolo

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An example is the total mechanical energy for a satellite in, say, a circular orbit around a planet. If the masses of satellite and planet are m and M>>m, respectively, and the radius of the orbit is R, then the kinetic energy of the satellite is

(1/2)·m·(v^2) = GmM/2R ,

while the gravitational potential energy of the field is

-GmM/R .

Thus, the total mechanical energy for the system is

-GmM/2R .

(We are treating the mass of the planet as effectively infinite here for simplicity. We really should use "reduced mass" for the system.)

A similar result is found for other sorts of systems bound by forces which can be described by potential functions.

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ritwik06

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Thanks a lot. I have understood it quite right. thanks for the help once agin.

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