mamasing

This is Not True公仔箱論壇+ s3 ~4 X6 N! _. t- @0 \, p% @
(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
' O; p* B/ p5 ~9 I$ ]  n4 x$ P5 ieffect is not significant.  OK this explain the speed aspect.$ q; Z2 v) u) z& h' `4 t" l
(b) Jumping direction: if you were in a car or a train carriage, you do not have a 5.39.217.76/ g7 b+ n- `9 ~' ]) a
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
, C8 {" A9 d" o5 B: D6 I' A: |6 Xlanding impact.  Do  not forget to Roll when the body hit the ground.
: b$ w6 t% `' Y4 nTVBNOW 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。(c) Make sure when you jump, you are facing the forward direction. If you are 公仔箱論壇9 Q$ h% ?, g+ S1 L3 C
facing the away direction, the forward momentum will make you fall on the back 7 v0 c3 L5 X( n, i% Z
of your head first, it could be a fatal hit.5.39.217.76$ S2 r7 g' U3 B8 c" x" Y
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"tvb now,tvbnow,bttvb5 L; o' m) z2 U  G% }$ E* [
I doubt this is true.
" a0 d# b6 T# aIf you are carrying a forward momentum and when the body/ object landed, the
* n7 O- f4 j# A) V* pTVBNOW 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。momentum will continue its direction unless affect by other external force. (Baisc; _5 b4 q; U. N3 [3 s
Newton Law) ie. The body will continue to move forward, your forehead will hit
( c4 |3 B3 d( G% u3 k5.39.217.76the ground first unless you lean back when you jump off the moving object.