This is Not True 2 W4 f) r A$ M" c7 D& v) r* X(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 www2.tvboxnow.com1 v* j+ F/ A& \- P% q+ B' @
effect is not significant. OK this explain the speed aspect. # W' U) a" e# b6 h5 A0 P1 i(b) Jumping direction: if you were in a car or a train carriage, you do not have a # G2 m$ Q+ [: Dtvb 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 M/ @- u! G3 ^- K7 k8 _0 e' ?: g
landing impact. Do not forget to Roll when the body hit the ground. 3 D; [: |, r4 Z9 c# eTVBNOW 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,bttvb/ y: k# I3 Z. s# G
facing the away direction, the forward momentum will make you fall on the back ( R! S- }( D- L: P' v公仔箱論壇of your head first, it could be a fatal hit.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。 m7 l2 S( [0 ?: O8 _
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" 7 G. o; q/ B' C: g1 [" _公仔箱論壇I doubt this is true.1 w. j; i# k7 p1 R
If you are carrying a forward momentum and when the body/ object landed, the公仔箱論壇9 F$ Z3 E' @( ]. t, {, n+ z0 `
momentum will continue its direction unless affect by other external force. (Baisc 6 m& Q5 s8 w! ^* T1 Z& k( T9 u# hNewton Law) ie. The body will continue to move forward, your forehead will hit ' k) X7 h- l+ ]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
