This is Not True " T9 _) v3 ]( N1 p xwww2.tvboxnow.com(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 - X% ? z% ?7 Ueffect is not significant. OK this explain the speed aspect. ! Q0 [% I7 \7 p0 _6 z2 h(b) Jumping direction: if you were in a car or a train carriage, you do not have a 1 V7 [/ ]3 Q- E* w
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 tvb now,tvbnow,bttvb5 y8 ~) U/ O' Q# [1 N, m4 w7 G
landing impact. Do not forget to Roll when the body hit the ground.tvb now,tvbnow,bttvb4 E0 ~1 V/ Y; m0 J
(c) Make sure when you jump, you are facing the forward direction. If you are 公仔箱論壇' Q# |1 i, y4 `1 A8 [& ~0 b
facing the away direction, the forward momentum will make you fall on the back # z; f9 Q, V! }/ I& x& |
of your head first, it could be a fatal hit. F4 ^) }0 j% I
This is my 2 cents worth.作者: mamasing 時間: 2007-4-25 03:31 PM
"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"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。0 U5 W) ~0 V& P) x) E) E
I doubt this is true. $ G. _, }0 k; h; BIf you are carrying a forward momentum and when the body/ object landed, the # } y- f4 p1 h, U- ?$ itvb now,tvbnow,bttvbmomentum will continue its direction unless affect by other external force. (Baisc / w. _+ F# M4 W% o6 s3 `tvb now,tvbnow,bttvbNewton Law) ie. The body will continue to move forward, your forehead will hit * e: o; p% L1 X, G6 d
the ground first unless you lean back when you jump off the moving object.作者: 光明的迷途 時間: 2007-4-25 09:03 PM
