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![[Post New]](/templates/default/images/icon_minipost_new.gif) 19 May 2007 15:12:00 IST
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The self gravitational potential energy energy of a spherical shell of mass M and radius R is:--
ans is
-GM2/2R
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adversities cause some men to break other to break records............i m of the other type....... :-) |
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19 May 2007 15:30:29 IST
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plz reply
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adversities cause some men to break other to break records............i m of the other type....... :-) |
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19 May 2007 15:59:19 IST
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The self potential energy of a system is defined as
U =(1/2)  V dm
where V is the potential energy of the rest of the system at the location of dm.
Let dm be an elementary mass on the surface of the sphere. Then
V = -GM/R
U =(1/2)  V dm = =(1/2) (-GM/R) dm = -GM/2Rdm = -GM2/2R
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21 May 2007 02:33:06 IST
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Good answer elessar
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Krishna Gopal Singh
B.Tech Chemical Engg
IIT Delhi 2002
Currently doing PhD from IIT Delhi |
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21 May 2007 07:47:07 IST
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hey elessar what is the meaning of self potential energy a new trmr for me
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21 May 2007 13:07:50 IST
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Please read "Fundamentals of Mechanics" by IE Irodov. Its a very good book on Mechanics ... but let me warn you ... its mathematical level is a bit higher than +2 level. Before reading that book... get an elementary idea abt vector calculas. That should seeyou through.
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21 May 2007 13:10:02 IST
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Any system of mass creates a potential not only outside itself but throughout itself as well. Self PE corresponds to the part of the potential that it creates through itself. For the derivation of the formula see "Fundamentals of Mechanics" by IE Irodov
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22 May 2007 04:24:53 IST
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thank u elessar......
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