mamasing

This is Not True
8 }2 ?; Y* F3 R* c7 Y" E. r1 ]tvb now,tvbnow,bttvb(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
8 w* d( I0 R6 s5 w6 oeffect is not significant.  OK this explain the speed aspect.
+ i8 d3 C8 F0 t# f' 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。(b) Jumping direction: if you were in a car or a train carriage, you do not have a : u5 D, X3 V6 ^9 c' ~4 s
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
5 Z( m3 `- P2 \tvb now,tvbnow,bttvblanding impact.  Do  not forget to Roll when the body hit the ground.
* F! D; {& k  B' s1 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。(c) Make sure when you jump, you are facing the forward direction. If you are 公仔箱論壇. p' h' ~' o. J$ r
facing the away direction, the forward momentum will make you fall on the back
8 T3 m; o: `0 `' K* U$ uof your head first, it could be a fatal hit.
1 O) P9 E/ y6 `7 l/ M' mTVBNOW 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。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"6 |! t' Z* @) ?1 W1 h
I doubt this is true.
* v7 Q  n5 G$ v% l, O2 ~0 U5 r5.39.217.77If you are carrying a forward momentum and when the body/ object landed, thetvb now,tvbnow,bttvb: [: \- E$ ]. {2 c8 X# r- m+ L
momentum will continue its direction unless affect by other external force. (Baisc3 t0 _  i) X+ Y  Q/ ]# j: R; D4 t
Newton Law) ie. The body will continue to move forward, your forehead will hit
  D' J6 D0 V6 j6 h7 F' B0 k0 rthe ground first unless you lean back when you jump off the moving object.