This is Not TrueTVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。6 f0 p- H2 \$ H" Q# ]
(a) Unless you are travelling in extremely slow speed (5Km or less), otherwise your jump off speed is so slow in comparison to your forward speed. The counter 7 W) _9 w0 \& l# y$ U( ?% f, q0 Lwww3.tvboxnow.comeffect is not significant. OK this explain the speed aspect.公仔箱論壇4 M, I6 R# @% x: Q: B1 F' J- T
(b) Jumping direction: if you were in a car or a train carriage, you do not have a 公仔箱論壇# B3 M9 @ t3 Z7 a+ i! E8 Q
choice whether you are jumping forward or backward. You can only jump iside way or best a 45 degree against the forward angle. Either angle will affect your # G. j0 [1 e* Q D/ I
landing impact. Do not forget to Roll when the body hit the ground.www3.tvboxnow.com6 W0 X0 N+ S9 Y
(c) Make sure when you jump, you are facing the forward direction. If you are TVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。& p3 Q- F' r* u7 J, C9 U
facing the away direction, the forward momentum will make you fall on the back 0 @' b/ z* a, K9 C
of your head first, it could be a fatal hit.( R$ C( x/ Q' |1 m
This is my 2 cents worth.作者: mamasing 時間: 2007-4-25 03:31 PM
"向前跳的話，著地的時候，身體會向後仰，後腦撞到的危機性較大，死亡率亦較高"www3.tvboxnow.com Z6 t) R7 E; g9 T: p
I doubt this is true.! T( `& s) a! A$ R+ ]
If you are carrying a forward momentum and when the body/ object landed, thewww3.tvboxnow.com+ }" F( M0 e" n
momentum will continue its direction unless affect by other external force. (Baisctvb now,tvbnow,bttvb$ q9 y2 O/ G, K u
Newton Law) ie. The body will continue to move forward, your forehead will hit 2 k$ `" {! g1 E+ r9 |TVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。the ground first unless you lean back when you jump off the moving object.作者: 光明的迷途 時間: 2007-4-25 09:03 PM
