This is Not True9 {8 r1 O5 L8 m9 S" c+ `
(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 tvboxnow.com' B A$ N8 T: Q: K$ Y
effect is not significant. OK this explain the speed aspect.. f( R5 y8 G. _( E
(b) Jumping direction: if you were in a car or a train carriage, you do not have a & p3 s: O/ ^6 s l) s0 G. v+ [6 n4 Pchoice 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 tvb now,tvbnow,bttvb, s" e7 y4 w( B% `/ V
landing impact. Do not forget to Roll when the body hit the ground. 1 S8 d( p5 R3 |- o3 v1 k2 r1 r(c) Make sure when you jump, you are facing the forward direction. If you are # D' h# J y+ C! i% e; Dtvboxnow.comfacing the away direction, the forward momentum will make you fall on the back 5 p+ N3 Y( D2 b
of your head first, it could be a fatal hit.tvb now,tvbnow,bttvb. K7 |+ ]! M, U* e
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"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。, W# w; w% {5 z0 f: o
I doubt this is true. * U- @, H! |! w6 z3 uIf you are carrying a forward momentum and when the body/ object landed, the 5 d1 u( r8 r- q- t5 a, X" w公仔箱論壇momentum will continue its direction unless affect by other external force. (Baisctvb now,tvbnow,bttvb" p1 i5 U8 Q7 C) e9 x
Newton Law) ie. The body will continue to move forward, your forehead will hit 1 u) s+ I7 T+ Y9 {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
