This is Not True 3 S# K; @/ [. Z(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 2 U/ x: A4 u8 Yeffect is not significant. OK this explain the speed aspect. 2 h$ V3 w j X* H: MTVBNOW 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。(b) Jumping direction: if you were in a car or a train carriage, you do not have a 0 U/ F: Q: [" C
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 @# S6 _, X1 I+ ~& o4 ~tvb now,tvbnow,bttvblanding impact. Do not forget to Roll when the body hit the ground.9 p, Y1 l; T, S; N n
(c) Make sure when you jump, you are facing the forward direction. If you are ! u/ v+ B% n. ~! r/ C+ Y' ]tvb now,tvbnow,bttvbfacing the away direction, the forward momentum will make you fall on the back 6 ]) a# S2 T# s, y$ x5 ^- ]; t6 u* O
of your head first, it could be a fatal hit. ' s; B# H/ U, S! l; c' a- T5 QTVBNOW 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。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" C6 k7 V8 [- q9 R
I doubt this is true.os.tvboxnow.com' F' }; U6 Y" j" R0 ~
If you are carrying a forward momentum and when the body/ object landed, the公仔箱論壇. S" [- u* V2 I/ U+ ^: S& |
momentum will continue its direction unless affect by other external force. (Baisc公仔箱論壇! F' H* g: B, {0 e3 f/ [
Newton Law) ie. The body will continue to move forward, your forehead will hit 公仔箱論壇/ z# }2 @2 a& V% ~- l1 Z4 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
