This is Not True公仔箱論壇; b+ {3 F! z* S8 o8 r% d+ P
(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 公仔箱論壇6 Y8 }' x; _+ q- m" [
effect is not significant. OK this explain the speed aspect.公仔箱論壇* v9 ~0 A+ ]$ i
(b) Jumping direction: if you were in a car or a train carriage, you do not have a 公仔箱論壇! v4 q' e% u/ t4 ]: O
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 * p0 } p; c0 {$ F0 [. Mlanding impact. Do not forget to Roll when the body hit the ground. 8 }: D' m2 V F+ U) p(c) Make sure when you jump, you are facing the forward direction. If you are 3 ~6 r- m c) d# ]$ x" F
facing the away direction, the forward momentum will make you fall on the back " k& }3 `4 }3 _) W. n( N公仔箱論壇of your head first, it could be a fatal hit. ( V% u( H. j" K# P; dtvb now,tvbnow,bttvbThis 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"公仔箱論壇7 h; \2 K2 ]# G3 m" s* A# g
I doubt this is true. , z! f/ z6 p0 h/ C* u0 {; Ios.tvboxnow.comIf you are carrying a forward momentum and when the body/ object landed, theTVBNOW 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。' r/ ^8 _2 x! V# M
momentum will continue its direction unless affect by other external force. (Baisc : w \( i% p& v) g) w* Ytvb now,tvbnow,bttvbNewton Law) ie. The body will continue to move forward, your forehead will hit ! p* B$ c/ G, K9 J$ f公仔箱論壇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
