mamasing

This is Not True" u$ L% L$ V9 r# f  f+ f
(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 : ?3 s4 A! g3 D+ B$ o8 F/ n
effect is not significant.  OK this explain the speed aspect.
" j5 W9 r4 i, d* n, {公仔箱論壇(b) Jumping direction: if you were in a car or a train carriage, you do not have a ( V  P' n2 G: B! `
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 5.39.217.77:8898' _6 o9 {* K. o6 @5 {
landing impact.  Do  not forget to Roll when the body hit the ground.
/ B, s3 u! r2 S0 m3 z* q公仔箱論壇(c) Make sure when you jump, you are facing the forward direction. If you are 8 ?& o. ^0 _7 K6 A
facing the away direction, the forward momentum will make you fall on the back
6 d8 N6 e" L: s, a& ITVBNOW 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。of your head first, it could be a fatal hit.* z" h% @; H9 B! c; p" b9 x, I
This is my 2 cents worth.

mamasing

"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"5.39.217.77:8898: |4 f* ^+ `  Z! l) g7 Y
I doubt this is true.5.39.217.77:8898/ u2 L. v' c' K# \% ^. ?5 S
If you are carrying a forward momentum and when the body/ object landed, the* s  b+ z" b# p" B: M; s
momentum will continue its direction unless affect by other external force. (Baisc公仔箱論壇8 L& t9 h) x5 l% ^# x
Newton Law) ie. The body will continue to move forward, your forehead will hit
% B0 `- j7 p0 f' d; m' N# _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。the ground first unless you lean back when you jump off the moving object.