This is Not True + E3 W+ T9 |) \- b. ?' Q1 e(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 : V$ B- o5 ?1 ^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。effect is not significant. OK this explain the speed aspect. " C: g; q$ m9 h: Z. [8 I' L公仔箱論壇(b) Jumping direction: if you were in a car or a train carriage, you do not have a 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。4 h$ f* O5 h: ~' D2 }
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 ( P% L# J, T2 v7 q: ytvb now,tvbnow,bttvblanding impact. Do not forget to Roll when the body hit the ground. 5 H5 j: n- j( x% G: ^0 A! H2 z公仔箱論壇(c) Make sure when you jump, you are facing the forward direction. If you are r w" r6 R7 ?2 \+ v1 {6 Kfacing the away direction, the forward momentum will make you fall on the back 8 \0 q1 F' B5 ^$ Q# F6 V
of your head first, it could be a fatal hit. 3 P. G) N- ?4 U; c0 D, ~ JThis 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。3 k" p8 [! _# g, A( |
I doubt this is true. 2 j1 v8 a# [! p# q. I% h9 C7 \8 ] S公仔箱論壇If you are carrying a forward momentum and when the body/ object landed, the 3 ~: z/ J; u7 \8 y8 `" ymomentum will continue its direction unless affect by other external force. (Baisc公仔箱論壇. A) w% i* {5 W0 l- {" ~% {/ d W
Newton Law) ie. The body will continue to move forward, your forehead will hit ; s8 h8 ^4 w& ?: Y( a4 i9 Q; B" Qthe 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
