seafireson2

如果北極有個洞真穿南極,
8 R; y# X4 v# O0 n" ~您跌入去,
4 ~- a* v0 o# j8 L8 }( e4 I您會去到達南極~5 R2 l" p# S7 c, P, b
但到達南極後會吸回北極~~~, L$ i7 f( S5 U; u
到北極後又會吸回南極................
4 R7 J+ U" i# U即係好像彈簧0甘~~~" L# S1 @- \9 |2 o4 W$ O! D
(假設地球質量是平衡分佈)5 l) r0 o6 L7 U- D, ~+ i6 B7 f
(answer 來自我的預科物理ar sir)& |! |# k( l. e9 S9 b- ?" K% E

* n! ]* P' J4 u$ S: k事實上,地球質量是唔平衡分佈,& |3 _& G7 A" o% `' e+ {% Y0 f" s
so 一次反彈的力量會比一次少,) K& f$ N* i  v( X& B
then 一次反彈的距離會比一次少) i( a3 ]& s0 U0 T' J8 s5 R) M
最後您會停在地心......
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% K$ L6 S$ B  s$ C8 B8 x- h[ Last edited by seafireson2 on 2006-5-8 at 11:05 PM ]

seafireson2

Originally posted by gaye at 2006-5-8 11:35 PM:) n: S% a8 z& l+ m  G6 f% b

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但假如我唔係 North Pole jump 落...

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....................=="", t5 H" O; M8 L( A) C' r
爬上去定爬落去係相對...............' J0 D2 r& x* d$ o9 Q
個方向係由您set......, ~9 ?6 h, D  G1 D% ]- G
您定義north pole 係上面,0甘咪爬落law...# G: q9 I2 a5 @$ D2 C- v
您定義south pole 係上面,0甘咪爬上law...# a8 F  F6 ]' ]6 Y7 G

1 i& |, }2 ^* ?1 Z6 Khowever,點解唔simple d 呢........
( v8 X# J. Z% W* w8 [由地心去south pole,
7 \; g' `( H4 e; @1 U+ J3 X' ^0甘咪ok law..........

seafireson2

Originally posted by 機密 at 2006-5-9 12:10 AM:5 _4 t2 d, Z" O

: ~( F8 x9 `- w# F4 `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！

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都話明"假設"ar!!!!!!假設唔一定要正確ga.............

seafireson2

Originally posted by FishyR at 2006-5-9 05:09 PM:* h) {% q1 K% K2 _8 [
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.

, g- S* N- D( R0 Q' @8 v$ h& }! G2 D其實係去到地心,南北半球ge地心吸力先相等同抵消~so地心ga引力係0~~~~
' r2 Z9 e3 [( X% U! v8 U# q- t4 N但您之前有加速,即您本身有speed~0甘您會直去,但去南半球時又受引力,會減speed,最後係南半球表面stop~~~