piyopiyo 發表於 8-9-2008 06:10:43

原帖由 bunbunbunbun 於 7-9-2008 23:59 發表 http://www.nakuz.com/bbs/images/common/back.gif
if you understand the principle of circular motion
u will find out that indeed, u will move around the earth,
unless u apply energy against the air and ur initial movement
(even if u lift the plane ...
樓主means that indeed[]

[H]bunbunbunbun 發表於 9-9-2008 02:06:38

回復 11# 的帖子

even when u "stop"
u are still moving

if he meant to stop perfectly
then there's no means to move around the earth

piyopiyo 發表於 9-9-2008 06:10:17

[]
樓主的問題真係好"........."
架飛機停的話,其實只係個relative velocity =0(provided that the observer is on the earth or on the plane)...事實上架飛機係跟住個地球轉.
但如果你要講到架飛機係完全停晒,從外太空睇係見到佢唔郁的話...其實係地球ge人又會見到架飛機向後郁[]

Puppet 發表於 9-9-2008 12:10:33

跟住地球自轉:loveliness:

-終場ソ使者- 發表於 9-9-2008 18:15:08

地球自轉同飛機行駛冇關係- -
但如果飛機有無限既能源,就一定會圍住地球(唔降落)
佢唔會飛上太空- -
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