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。! f9 s1 z/ l( @3 i
(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 6 E. e: ^) j5 M7 V' l$ geffect is not significant. OK this explain the speed aspect.5.39.217.77. `4 `% y( W5 m/ z! o8 N) k8 f) Y
(b) Jumping direction: if you were in a car or a train carriage, you do not have a / m8 t" H+ |/ t8 s4 D
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 + n* Z. c7 s' P' Y P$ k4 Ylanding impact. Do not forget to Roll when the body hit the ground. * P3 N$ _" a1 u# j5 pTVBNOW 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。(c) Make sure when you jump, you are facing the forward direction. If you are 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。; C$ E9 c) R8 f. j
facing the away direction, the forward momentum will make you fall on the back % P7 L/ `/ t: W6 \tvb now,tvbnow,bttvbof your head first, it could be a fatal hit.5.39.217.77$ x4 C" \ k) w0 a3 } K1 v
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" - e( y8 F3 z4 z& |, `# tI doubt this is true. - e0 v% P8 m7 Z) x6 T) l- Z |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。If you are carrying a forward momentum and when the body/ object landed, the5.39.217.778 J1 ?$ w: k- z% |8 E! o
momentum will continue its direction unless affect by other external force. (Baisc ! `" m9 G, w0 `tvb now,tvbnow,bttvbNewton Law) ie. The body will continue to move forward, your forehead will hit U- [4 P5 n/ H% Y
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
