mamasing

This is Not True" M. N. P, L& g8 _; y. V- F
(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 ' s! e5 L: {6 I' ?/ \4 D
effect is not significant.  OK this explain the speed aspect.% J: w: w( j: c; V2 G3 g
(b) Jumping direction: if you were in a car or a train carriage, you do not have a
. E( V$ r9 d5 W8 LTVBNOW 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
# u( a3 N1 @* a* M- D; {- M9 W) ?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。landing impact.  Do  not forget to Roll when the body hit the ground.
: C2 S5 ^9 H0 }(c) Make sure when you jump, you are facing the forward direction. If you are
7 M0 X1 n) u# f5.39.217.77facing the away direction, the forward momentum will make you fall on the back
) O2 G7 h6 ]' M* U8 M( bTVBNOW 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。of 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。" \1 G& @9 `4 Q1 S1 R, w) |
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"
: L6 K$ A% e0 i. vI doubt this is true.- A1 g* t6 S, l: y
If you are carrying a forward momentum and when the body/ object landed, the5.39.217.77# ]) o# g( `  f: o7 V9 y) l
momentum will continue its direction unless affect by other external force. (Baisc
" J' _2 y1 U; |+ v9 x  Z公仔箱論壇Newton Law) ie. The body will continue to move forward, your forehead will hit tvb now,tvbnow,bttvb( z+ u7 U: b: u
the ground first unless you lean back when you jump off the moving object.