mamasing

This is Not True
# N! d7 u/ {" F0 S! H1 q公仔箱論壇(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 5.39.217.763 e) Y6 G4 `6 m
effect is not significant.  OK this explain the speed aspect.5.39.217.76. W* p: c& c( |6 l. Q3 M8 ?. L" f
(b) Jumping direction: if you were in a car or a train carriage, you do not have a 9 T% s. R: X$ \! ~2 t" r3 E
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 3 P. o  u6 N# x0 g( T1 a
landing 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。+ u/ B) y  G7 e+ n; W# X, l/ R
(c) Make sure when you jump, you are facing the forward direction. If you are ( F$ U( a; P, T- F) Z
facing the away direction, the forward momentum will make you fall on the back
, L3 z! R% @* k0 g; Mof your head first, it could be a fatal hit.+ A; t! ~, ^' j; u
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"
( P# O2 [, K/ \9 o8 J公仔箱論壇I doubt this is true.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。# U' x: W; e7 c* g; Q
If you are carrying a forward momentum and when the body/ object landed, the公仔箱論壇9 m# R9 [% |. ^: w7 W" Z" q" G0 |9 I" M
momentum will continue its direction unless affect by other external force. (Baisc. V: e- X6 n: o# _1 m
Newton Law) ie. The body will continue to move forward, your forehead will hit
1 B  ]/ u2 }; K, r公仔箱論壇the ground first unless you lean back when you jump off the moving object.