seafireson2

如果北極有個洞真穿南極,
# o- _9 k% `8 L& h$ t. {您跌入去,7 A  E6 j* A4 R2 P, S! c: U
您會去到達南極~
; Q+ j# {+ T- n/ ^0 K: [2 @但到達南極後會吸回北極~~~7 G9 G9 ^3 Z! k$ C. r5 b2 A1 {- f
到北極後又會吸回南極................6 m6 Q& Q2 ^0 W! d
即係好像彈簧0甘~~~( y! x+ z; `4 j
(假設地球質量是平衡分佈), d) L7 `5 N5 x  B, Z# J
(answer 來自我的預科物理ar sir)
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1 S0 l0 e) ^0 ?- f事實上,地球質量是唔平衡分佈,
1 J9 l" W6 O( P+ ]' pso 一次反彈的力量會比一次少,
0 B, U  R( l9 F/ R; Mthen 一次反彈的距離會比一次少
9 l+ A" F  x1 |# I9 f最後您會停在地心......& Z9 F3 n9 H7 t7 Z7 q

# k+ C* Q9 [- P$ {( q( {8 D[ Last edited by seafireson2 on 2006-5-8 at 11:05 PM ]

seafireson2

Originally posted by gaye at 2006-5-8 11:35 PM:
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0 n5 m. `8 K5 _3 c% ]但假如我唔係 North Pole jump 落...

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....................==""0 A2 n  v' u: m2 d$ s  d* \/ G; v6 n
爬上去定爬落去係相對...............$ ~; D8 K" `. ^) ]5 t8 ~' e
個方向係由您set......$ Z7 b3 t6 n, O' A( O; @, z1 u
您定義north pole 係上面,0甘咪爬落law...
2 x! U8 T( q+ @- m$ j0 S0 \您定義south pole 係上面,0甘咪爬上law...
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however,點解唔simple d 呢......... T& _8 p6 q/ A% v& L. l1 ~) S. O
由地心去south pole,$ W2 M% {$ B9 [( j
0甘咪ok law..........

seafireson2

Originally posted by 機密 at 2006-5-9 12:10 AM:2 P- T1 \" {# `7 b4 B* D; w

$ W+ I+ i& w" ]$ D( W6 i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:1 l! g2 ~2 a! N! Q# o+ B! T. Q+ q/ K
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.

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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~~~~
5 d: e* j: a+ t. ?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~~~