This is Not Truetvb now,tvbnow,bttvb& f: H& y$ g7 Z1 Z; V
(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 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。: Q% ~2 S& }; d+ o! X( _
effect is not significant. OK this explain the speed aspect.0 T) U W# @2 a9 o ^/ @
(b) Jumping direction: if you were in a car or a train carriage, you do not have a G8 F! O2 g' E+ P4 b8 e$ z* |4 Vchoice 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 8 k/ e: x' I B# y jTVBNOW 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。landing impact. Do not forget to Roll when the body hit the ground.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。7 t4 D; h5 C( I% E+ w5 N7 B
(c) Make sure when you jump, you are facing the forward direction. If you are 8 n. L) b0 t8 `facing the away direction, the forward momentum will make you fall on the back * Z: B) \4 p! r+ O. O# T: itvb now,tvbnow,bttvbof your head first, it could be a fatal hit. ( F5 A" v6 G Q$ I, P6 IThis 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"os.tvboxnow.com* s) W% W- A9 s' w! n
I doubt this is true. # o4 I! j# g* HIf you are carrying a forward momentum and when the body/ object landed, the公仔箱論壇% ?* o: F0 l" M* R
momentum will continue its direction unless affect by other external force. (Baisc公仔箱論壇$ x7 H9 y6 m+ I: m. C+ z
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。% g' j* P- f) r- e) E
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
