mamasing

This is Not True5.39.217.77:88985 \: }! k* f. U5 |+ V; ^' T
(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
0 k0 r3 B0 Z* R* y* gtvb now,tvbnow,bttvbeffect is not significant.  OK this explain the speed aspect.
# ?4 x& N3 u3 i, a$ M' j) bTVBNOW 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。(b) Jumping direction: if you were in a car or a train carriage, you do not have a 9 N* f: q7 ~+ W2 W
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 tvb now,tvbnow,bttvb* \% b  `7 Y- C; s( Q& s( _, p
landing impact.  Do  not forget to Roll when the body hit the ground.
3 v3 J) a1 `' t, d5.39.217.77:8898(c) Make sure when you jump, you are facing the forward direction. If you are 公仔箱論壇8 Z; o* A  M1 f% d' g3 Y' B
facing the away direction, the forward momentum will make you fall on the back 2 y4 u4 u  K7 Y* E' N
of your head first, it could be a fatal hit.
6 m, H/ p/ J4 q3 s- k/ t( i5.39.217.77:8898This 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"5.39.217.77:88989 g5 Y/ z. v% l' T0 E$ x/ V
I doubt this is true.: V- w# _  N; K" Q$ d  X
If you are carrying a forward momentum and when the body/ object landed, the! \; G1 s' b& G3 E, |5 M$ ~
momentum will continue its direction unless affect by other external force. (Baisctvb now,tvbnow,bttvb. B9 [0 q! `& F4 d7 ~* V, C
Newton Law) ie. The body will continue to move forward, your forehead will hit 8 s- o# `' D1 C: c
the ground first unless you lean back when you jump off the moving object.