This is Not True6 I( s, k8 G- B; k5 W, u `. 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 : U& P6 K! n. {, CTVBNOW 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.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。! p2 N( M6 S3 Y. E8 G& ^- H
(b) Jumping direction: if you were in a car or a train carriage, you do not have a tvboxnow.com) a; N% {, Y, L: Z& p
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 ' |8 q1 Z! \9 B% { V4 X. }6 K4 Xlanding impact. Do not forget to Roll when the body hit the ground.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。0 K) P$ M( E& d7 `
(c) Make sure when you jump, you are facing the forward direction. If you are . Y* Q1 [& N/ q3 o" Y4 ~公仔箱論壇facing the away direction, the forward momentum will make you fall on the back & U( b# Y4 h( a# M5 ]2 h( X8 C+ Yof your head first, it could be a fatal hit.3 e4 d3 |6 i) T; C
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"公仔箱論壇: g& s7 q" X$ Q* v( Z! K5 b7 V
I doubt this is true.- J, m" w, {8 f9 g
If you are carrying a forward momentum and when the body/ object landed, thetvboxnow.com; n$ J4 A/ Q7 W! u* O9 |+ X7 M
momentum will continue its direction unless affect by other external force. (Baisc公仔箱論壇3 E# `' N0 j5 A. Z, T1 \
Newton Law) ie. The body will continue to move forward, your forehead will hit 1 p% y) E* z, }5 ?2 t% x! Rtvb 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
