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。, `- l6 S! y# `) b% S$ M
(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 A& K2 c$ ?( f2 }. L5 rtvb now,tvbnow,bttvbeffect is not significant. OK this explain the speed aspect.公仔箱論壇4 r- X, [+ q3 Y; k
(b) Jumping direction: if you were in a car or a train carriage, you do not have a tvb now,tvbnow,bttvb, N" R! }- j p' _
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 tvboxnow.com) V9 q* n! p0 e8 ^: N3 n. }8 q
landing impact. Do not forget to Roll when the body hit the ground. ! z0 d6 D* ?. Z' q4 E(c) Make sure when you jump, you are facing the forward direction. If you are 公仔箱論壇1 j3 w* F. F' A! }! R! h
facing the away direction, the forward momentum will make you fall on the back 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。2 t+ X3 H- B; f# i, o6 W" I. k
of your head first, it could be a fatal hit.tvb now,tvbnow,bttvb5 C* I# y# s& F
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" 5 t6 Z, [6 H, l, ^3 m9 nTVBNOW 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. . X- }! A8 ?" ]$ b9 ~3 i6 ^# L' qIf you are carrying a forward momentum and when the body/ object landed, the1 N9 f3 Y k* m/ Z+ C, h/ ?
momentum will continue its direction unless affect by other external force. (Baisc 3 H' d4 p. }* Q0 E* BNewton Law) ie. The body will continue to move forward, your forehead will hit + Y7 P& s* |; J8 ^. H( Q, T' btvboxnow.comthe 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
