This is Not True 4 f/ G2 |/ X. \. d公仔箱論壇(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 % t7 k1 U h& A2 U; j! N X5 a3 NTVBNOW 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。effect is not significant. OK this explain the speed aspect. " c4 j- i" [9 S/ P2 b2 L公仔箱論壇(b) Jumping direction: if you were in a car or a train carriage, you do not have a : L5 x% T2 B z: F0 l1 Wtvb now,tvbnow,bttvbchoice 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 公仔箱論壇 |, ?/ ]4 l1 C1 E- }2 H8 R
landing impact. Do not forget to Roll when the body hit the ground. $ c5 \2 T _/ Q8 m2 W8 `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。(c) Make sure when you jump, you are facing the forward direction. If you are tvb now,tvbnow,bttvb1 x0 b3 |5 N6 z# d* ]
facing the away direction, the forward momentum will make you fall on the back 4 ?: X6 l1 S1 d: a( I4 c- Iof your head first, it could be a fatal hit. 7 `9 a" s8 O6 V) v公仔箱論壇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"6 N _+ [7 q1 h
I doubt this is true.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。+ b1 m% T8 [2 h' {$ f9 M/ J9 a6 w/ z
If you are carrying a forward momentum and when the body/ object landed, thetvb now,tvbnow,bttvb8 L5 _8 V0 L3 m' S4 e3 j' u# {% c
momentum will continue its direction unless affect by other external force. (Baisc" h/ J* M( Q5 J
Newton Law) ie. The body will continue to move forward, your forehead will hit ! x3 _) a: x, [8 mtvb now,tvbnow,bttvbthe 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
