mamasing

This is Not True
" J2 P5 @$ d# U) o) r2 k! V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
& v6 Q. w$ N  g' T0 A5.39.217.77:8898effect is not significant.  OK this explain the speed aspect.; ^+ ]' v9 k9 j! v: ?
(b) Jumping direction: if you were in a car or a train carriage, you do not have a ) ?# G' i3 B" X: Z5 y
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
2 H- t% N4 {6 H8 k4 j+ M" u5.39.217.77:8898landing impact.  Do  not forget to Roll when the body hit the ground.
. ~  g. h  @" V5.39.217.77:8898(c) Make sure when you jump, you are facing the forward direction. If you are $ q! M" r) ^. e; }( l8 D
facing the away direction, the forward momentum will make you fall on the back
. z/ {1 n7 o+ W3 H! |/ s公仔箱論壇of your head first, it could be a fatal hit.
; C. @2 L6 h( r1 B9 ?公仔箱論壇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"5.39.217.77:88982 n9 {1 e' T+ Y. ]
I doubt this is true.
5 O% v/ G& a- p" S) oIf you are carrying a forward momentum and when the body/ object landed, the$ x. l. M" g2 u1 A
momentum will continue its direction unless affect by other external force. (Baisc
( O* `' m. n/ v3 L, j4 j/ a6 j! rtvb now,tvbnow,bttvbNewton Law) ie. The body will continue to move forward, your forehead will hit
9 |  \( e+ I  w0 b, t2 Y; z0 c8 w6 J: Mthe ground first unless you lean back when you jump off the moving object.