Originally posted by seafireson2 at 2006-5-8 10:24 PM:/ X: I5 B$ ~2 X# L" Z2 z: y
如果北極有個洞真穿南極,
! d/ J7 w) ^0 O1 G$ Z4 J! k6 ~9 `您跌入去,...

Originally posted by milk~~ at 2006-5-8 10:38 PM:
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對~~!
  H3 Y, R! \* w. T9 a' U" k, Jsimple harmonic motion

Originally posted by fung at 2006-5-8 11:22 PM:( ~7 G- l/ H4 n  a
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仲要with damping

Originally posted by gaye at 2006-5-8 11:35 PM:
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/ w0 k% O, p2 e但假如我唔係 North Pole jump 落...

Originally posted by gaye at 2006-5-8 11:35 PM:
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8 u2 D. _8 Y& [5 A但假如我唔係 North Pole jump 落...

Originally posted by spector.R at 2006-5-8 20:51:
% m6 R4 k5 E4 a8 U3 O忽然有個奇想...你地有冇諗過
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Originally posted by 機密 at 2006-5-9 12:10 AM:
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/ D% E, w( W  c2 t( L0 Q無乜可能，除了極熱之外，還要頂得住地心的高壓！ 未到對面你都變左屎餅啦！ 瓜！

Originally posted by gaye at 2006-5-8 11:35 PM:0 Z' j: [: H9 t- i- E5 I
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但假如我唔係 North Pole jump 落...

Originally posted by 機密 at 2006-5-9 12:10 AM:) Z' R+ ~$ ^. _) c4 d/ M
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無乜可能，除了極熱之外，還要頂得住地心的高壓！ 未到對面你都變左屎餅啦！ 瓜！

Originally posted by seafireson2 at 2006-5-9 00:15:
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3 S6 }/ N3 w+ f3 d: m都話明"假設"ar!!!!!!假設唔一定要正確ga.............

Originally posted by fung at 2006-5-9 12:03 AM:5 C$ @6 W( M( m5 y5 u- Q3 h

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咁我諗要睇你點define上同落0 q! C" [, k, {6 ?
...

Originally posted by spector.R at 2006-5-9 19:37:& B$ p4 J0 s7 Y* s  A. o3 Z
我諗要達成呢個創舉仲難過派人上火星....

Originally posted by 奇 at 2006-5-9 09:22 PM:
$ k# Y1 o1 ^! i; ~5 ^( q3 C" x我反而想知"下降"速度幾多?

Originally posted by FishyR at 2006-5-9 05:09 PM:
* t6 R( C5 O* `$ R0 @我結論係去唔到最中心, 而喺地心同地面之間停下來. 喺個點係無地心吸力, 因地面質量對我所做成o既萬有引力, 同地心質量對我所做成o既萬有引力喺對等.