mamasing

This is Not True1 l7 ^+ T. u% x7 C' n
(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
1 Y$ f, O( W$ c& p2 _4 B4 Otvb now,tvbnow,bttvbeffect is not significant.  OK this explain the speed aspect.tvb now,tvbnow,bttvb$ i4 r. d. B( m5 d: o, W0 Y
(b) Jumping direction: if you were in a car or a train carriage, you do not have a
8 }! F  g( M( J8 K2 _8 eTVBNOW 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。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
4 I. t& x& \0 s/ o: i公仔箱論壇landing impact.  Do  not forget to Roll when the body hit the ground.5.39.217.77+ b' w0 ^2 Y# u7 a: g: k/ f
(c) Make sure when you jump, you are facing the forward direction. If you are
# t0 c' M' F' W% a* P- T" {4 ?tvb now,tvbnow,bttvbfacing the away direction, the forward momentum will make you fall on the back
8 b2 Z  Q8 k2 g9 g) @' I! Q) _of your head first, it could be a fatal hit.' I! i, L8 F5 X" y& X* m  N
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"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。/ G( N, W: n0 \! [2 Y  h
I doubt this is true.1 O5 |; x4 S' l9 V  p6 H
If you are carrying a forward momentum and when the body/ object landed, the: z2 w) k/ P! w. d. X, n  a
momentum will continue its direction unless affect by other external force. (Baisctvb now,tvbnow,bttvb1 z( ~6 X0 }7 S. y3 Y
Newton Law) ie. The body will continue to move forward, your forehead will hit
' m; ?# ^5 |1 q5 o0 [公仔箱論壇the ground first unless you lean back when you jump off the moving object.