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 A2 E5 c6 J/ }- a$ a' R0 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 9 b5 t, L+ Z8 i6 ~; v, W3 Geffect is not significant. OK this explain the speed aspect. , K* |7 u' X, D) V1 itvb now,tvbnow,bttvb(b) Jumping direction: if you were in a car or a train carriage, you do not have a tvb now,tvbnow,bttvb; I% {" R( X4 \" r
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 . W( R- t J1 m# ?8 Q8 ]6 E5.39.217.77:8898landing impact. Do not forget to Roll when the body hit the ground. A* a1 y4 ?5 N6 m% ?" a; z3 M(c) Make sure when you jump, you are facing the forward direction. If you are . Z) {" m% l2 ?5 I# ifacing the away direction, the forward momentum will make you fall on the back . ~# G/ t- a* a- K: {* Q/ o6 Ctvb now,tvbnow,bttvbof your head first, it could be a fatal hit." k3 R- o. L; N- i6 [' [. h7 y
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 x) U! N3 P8 N
I doubt this is true. 0 D. \: U. E, u# d8 p" j% I( U% x5.39.217.77:8898If you are carrying a forward momentum and when the body/ object landed, thetvb now,tvbnow,bttvb" @3 x- t" P( }# d9 C
momentum will continue its direction unless affect by other external force. (BaiscTVBNOW 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。% M! O- d2 [5 G6 {# X
Newton Law) ie. The body will continue to move forward, your forehead will 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。. o! J b4 J- T, e. t
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
