mamasing

This is Not True
$ T) c0 ?; Y2 V! R9 V& Z(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
! v7 U% C0 E, f  p7 e" @0 f1 heffect is not significant.  OK this explain the speed aspect.5.39.217.76: Z  L; W0 f7 T7 R9 A7 U
(b) Jumping direction: if you were in a car or a train carriage, you do not have a 公仔箱論壇; b+ U, N/ g/ A5 D( G- ?+ n
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
' k9 q+ J* {7 s9 p; U* y公仔箱論壇landing impact.  Do  not forget to Roll when the body hit the ground.
+ W- E  I* d" O' x(c) Make sure when you jump, you are facing the forward direction. If you are 5.39.217.769 S% D5 j: E" i7 H' K0 j5 H+ r
facing the away direction, the forward momentum will make you fall on the back
$ C. X+ z  g+ V+ J$ Vtvb now,tvbnow,bttvbof your head first, it could be a fatal hit.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。" P9 B) W" `9 k: S* O6 ^1 g
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"
/ H  F4 O5 G) D5 T% t# |+ C' DI doubt this is true.5 h3 G( Q# }% c$ S) u8 ~
If you are carrying a forward momentum and when the body/ object landed, the
1 Q4 M3 S* t+ |2 V7 s( ~公仔箱論壇momentum will continue its direction unless affect by other external force. (Baisc
7 {0 g/ k( R+ j4 wNewton Law) ie. The body will continue to move forward, your forehead will hit 公仔箱論壇# F% r. j1 e2 m' X) w* _6 l0 I! C
the ground first unless you lean back when you jump off the moving object.