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![[Post New]](/templates/default/images/icon_minipost_new.gif) 13 Oct 2007 23:01:22 IST
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at equator g=g-w2r
let at ehight H above south pole the acc. due to gravity is same
g'=g(1-2h\r)
g-w2r=g(1-2h\r)
1-w2r\2g=1-2h\r
h=w2r2\2g
solving u will get 10 km........
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