Originally posted by seafireson2 at 2006-5-8 10:24 PM:
; P7 d& d! P+ D: w( a如果北極有個洞真穿南極,
& Y. U( V/ N' u您跌入去,...

Originally posted by milk~~ at 2006-5-8 10:38 PM:
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) D5 g2 l' c% N) c0 {" ?對~~!
; g/ e. U, g2 y" S% I3 Isimple harmonic motion

Originally posted by fung at 2006-5-8 11:22 PM:  \2 ^0 y2 c* U0 R; B% B
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; J) z' g0 a/ V* D4 b) M仲要with damping

Originally posted by gaye at 2006-5-8 11:35 PM:* G6 o. _6 s: T+ P
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4 o: G  M3 X" k! w% u: ]' O1 j) s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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但假如我唔係 North Pole jump 落...

Originally posted by spector.R at 2006-5-8 20:51:
; z% G+ P9 `# Z7 G忽然有個奇想...你地有冇諗過
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假設...

Originally posted by 機密 at 2006-5-9 12:10 AM:# h3 K% b4 _) o
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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 gaye at 2006-5-8 11:35 PM:+ p/ k# c0 r3 a9 b/ I3 |

/ n( t; f1 O) k9 D* [2 i: A4 G
$ O0 ^4 x6 q7 U+ l  b# k: {但假如我唔係 North Pole jump 落...

Originally posted by 機密 at 2006-5-9 12:10 AM:7 G9 c' D9 ^% `* {2 p
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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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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:6 c% W% k6 m$ Z! t6 s

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咁我諗要睇你點define上同落' ^$ \# j* }6 R) W- e# a! ?
...

Originally posted by spector.R at 2006-5-9 19:37:# k$ C5 K4 ]8 r  W& I
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:
9 q- i, I  l! X" c我反而想知"下降"速度幾多?

Originally posted by FishyR at 2006-5-9 05:09 PM:
2 Q% ^) ?/ L& w! C, p3 G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.