This is Not True 6 E7 h/ Z! T8 e# I- J$ ~6 D3 u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 tvb now,tvbnow,bttvb0 j) C5 V/ ?/ w8 Z# D* L
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。/ u; `1 r0 b, J+ C Q# r: u
(b) Jumping direction: if you were in a car or a train carriage, you do not have a - C# K( B# e% p( J# r' Jchoice 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 , h' n- x% P" H% `2 z' llanding impact. Do not forget to Roll when the body hit the ground.. B% C- c' E3 v
(c) Make sure when you jump, you are facing the forward direction. If you are 7 v& a$ L$ P V6 [7 C
facing the away direction, the forward momentum will make you fall on the back , o" D! w2 _. u4 aos.tvboxnow.comof your head first, it could be a fatal hit.tvb now,tvbnow,bttvb4 Y9 q6 Y) @# }: `. ?5 t) p
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" + Z2 r8 O' `& K5 Z# Y! |; @; yTVBNOW 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。I doubt this is true. * ~6 i2 a; T$ p# [0 z$ W; WIf you are carrying a forward momentum and when the body/ object landed, the 4 W9 `' `8 L- F/ `公仔箱論壇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。. G4 t* c# ^8 Y
Newton Law) ie. The body will continue to move forward, your forehead will hit : g! k' R7 v" v- _& m7 A$ V3 Wthe 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
