This is Not True 5 e0 b1 v' d5 B9 c: z5 |" {, ?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。(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 - h; H2 c' k0 Keffect is not significant. OK this explain the speed aspect. - e! u" x( V* T! k(b) Jumping direction: if you were in a car or a train carriage, you do not have a $ w1 Q4 u7 U! A7 f
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 . r2 R9 i, U9 o3 l1 O- M5 {5.39.217.77landing impact. Do not forget to Roll when the body hit the ground. / t' A) i! `1 @" C(c) Make sure when you jump, you are facing the forward direction. If you are tvb now,tvbnow,bttvb5 J8 v" {: q! v9 F7 \
facing the away direction, the forward momentum will make you fall on the back 0 B6 U; P% v. {. N( z( ^of your head first, it could be a fatal hit. - C6 [, w) p TThis 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 i# M Z4 m; \( ~# i9 |+ i3 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. , D# |& X0 Z* ]$ V- R: FIf you are carrying a forward momentum and when the body/ object landed, the2 |5 ]" L' ?& E4 o
momentum will continue its direction unless affect by other external force. (Baisc . j: l2 s8 Y' Z' w5 l& TNewton Law) ie. The body will continue to move forward, your forehead will hit ! ?& S G0 M2 G' N- 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。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
