Originally posted by seafireson2 at 2006-5-8 10:24 PM:) o* m% @" T3 O8 d2 E
如果北極有個洞真穿南極, + ^) y' u8 O" @" r+ p1 c3 G
您跌入去,...

Originally posted by milk~~ at 2006-5-8 10:38 PM:3 L% }% c( C# W; E, p

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8 W: O1 O9 l: q+ y3 ]% Isimple harmonic motion

Originally posted by fung at 2006-5-8 11:22 PM:
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仲要with damping

Originally posted by gaye at 2006-5-8 11:35 PM:  ?4 K4 E- h, S/ v% p% B" t8 _
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& h2 ?/ [" [9 D6 Q但假如我唔係 North Pole jump 落...

Originally posted by gaye at 2006-5-8 11:35 PM:  W6 Z7 x  U+ F/ A4 m' \" F

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6 |7 A: {) R2 z& V5 Q7 N但假如我唔係 North Pole jump 落...

Originally posted by spector.R at 2006-5-8 20:51:2 @5 U) w# x* ?, `# j$ D" J: N
忽然有個奇想...你地有冇諗過. `9 ]7 C3 u- [2 ~+ ^

$ V8 f  U+ u. m. m3 A& l假設...

Originally posted by 機密 at 2006-5-9 12:10 AM:0 R8 W7 f1 i: i

6 K! N- I  M" a! d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:
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( t7 J1 p1 Q- C' Z/ ^3 Y但假如我唔係 North Pole jump 落...

Originally posted by 機密 at 2006-5-9 12:10 AM:/ W7 R' r1 `2 x+ ]5 b
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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:+ u" O0 y, ^9 O/ J  O. D

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咁我諗要睇你點define上同落* A* ]9 Z- t% Z! ~  }
...

Originally posted by spector.R at 2006-5-9 19:37:
0 t8 A' S/ P4 L, K7 s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:
5 C/ U; w0 z- Q- E* @9 L' C我反而想知"下降"速度幾多?

Originally posted by FishyR at 2006-5-9 05:09 PM:
) K6 ~3 p. P0 @1 ]% u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.