mamasing

This is Not True
1 ?* z2 B/ Z% @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
; Y$ @9 }/ i3 H; N. E+ q+ ]& p, {. U公仔箱論壇effect is not significant.  OK this explain the speed aspect.
/ k- l1 }) p$ q7 p, B7 I8 v6 ~(b) Jumping direction: if you were in a car or a train carriage, you do not have a
8 j. D# M, [! q) m9 B1 aTVBNOW 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 os.tvboxnow.com6 C4 \5 \+ |2 d8 S1 M, s, L% P
landing impact.  Do  not forget to Roll when the body hit the ground.
3 [+ u9 l8 d: C8 @2 \os.tvboxnow.com(c) Make sure when you jump, you are facing the forward direction. If you are
3 _- C7 N" H9 g" L. @0 Zfacing the away direction, the forward momentum will make you fall on the back
, B; A0 O: Z0 U0 A; M' G" o公仔箱論壇of your head first, it could be a fatal hit.tvb now,tvbnow,bttvb; B0 [# e' ]2 ^/ }
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"" z" o+ C# @, S9 T3 H+ w1 J/ [
I doubt this is true.
2 p. @5 }0 ]4 r. }8 t0 C2 Ttvb now,tvbnow,bttvbIf you are carrying a forward momentum and when the body/ object landed, the
7 u6 ]$ x$ d- D- b6 v8 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。momentum will continue its direction unless affect by other external force. (Baisc
9 D* d1 T1 U' ?  dos.tvboxnow.comNewton Law) ie. The body will continue to move forward, your forehead will hit
# H0 r4 L9 q4 d: H6 z! A' |tvb now,tvbnow,bttvbthe ground first unless you lean back when you jump off the moving object.