This is Not True公仔箱論壇2 ?5 V) O( y9 l0 h, W7 X- _" V
(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 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。" p, Y/ I: t# H7 @1 p' c! c
effect is not significant. OK this explain the speed aspect.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。2 V9 N& b+ X6 D+ Y' H$ P+ r- T& x
(b) Jumping direction: if you were in a car or a train carriage, you do not have a ( r9 J0 u( ~! q+ h8 t! s5.39.217.77choice 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 , { l& Q, s% _ ]) ytvb now,tvbnow,bttvblanding impact. Do not forget to Roll when the body hit the ground. 7 Q1 h2 m8 {8 U" l( [" ^7 s5.39.217.77(c) Make sure when you jump, you are facing the forward direction. If you are tvb now,tvbnow,bttvb. k# T. H3 k: c4 _* S
facing the away direction, the forward momentum will make you fall on the back 6 c- Q4 H) G v/ N' kTVBNOW 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。of your head first, it could be a fatal hit.5.39.217.77. l: L2 p7 s: g' H
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"! h2 Y3 H. w- z: d
I doubt this is true.公仔箱論壇- y( A! Q; L7 ~" H/ J, K8 B
If you are carrying a forward momentum and when the body/ object landed, theTVBNOW 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。% N+ j1 \ m+ c+ A4 G' b# _! J
momentum will continue its direction unless affect by other external force. (Baisc / C, {4 B1 D* |4 n3 FNewton Law) ie. The body will continue to move forward, your forehead will hit 公仔箱論壇+ _! F9 `, M1 s$ T+ n/ j3 D
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
