This is Not True % w1 {+ y/ q" Z(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 5 K* ?1 E: G) weffect is not significant. OK this explain the speed aspect. - H! I% x% Y$ R: w* z1 c( j% nos.tvboxnow.com(b) Jumping direction: if you were in a car or a train carriage, you do not have a 公仔箱論壇* v( G4 T& R4 z- n
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 0 g0 \% o5 O9 e0 K公仔箱論壇landing impact. Do not forget to Roll when the body hit the ground. 6 G3 I. o1 Q1 {$ n6 v" g" @公仔箱論壇(c) Make sure when you jump, you are facing the forward direction. If you are # ~) k6 r0 W4 Z9 ~+ Z$ m9 y
facing the away direction, the forward momentum will make you fall on the back $ L. t- S. p0 R* z# e2 J4 Uof your head first, it could be a fatal 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。' [( r' r+ o+ K+ v/ J
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"( h1 Q- w; C" ]! V
I doubt this is true.tvb now,tvbnow,bttvb: x) _6 {- i/ L) T. G; W; N
If you are carrying a forward momentum and when the body/ object landed, the ; H- W. l6 v" F+ ^' d8 Emomentum will continue its direction unless affect by other external force. (Baisc / n( I6 _' f3 q& Aos.tvboxnow.comNewton Law) ie. The body will continue to move forward, your forehead will hit . l+ E( S1 B6 B2 Dtvb now,tvbnow,bttvbthe 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
