This is Not True , T) k9 a0 ~& Ptvb 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 * g+ A" k4 a; p0 _9 `9 s# |8 i! oeffect is not significant. OK this explain the speed aspect. 1 W& q3 S- q, f' W% s5.39.217.77(b) Jumping direction: if you were in a car or a train carriage, you do not have a 5.39.217.77& [. s; `, ` 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 3 ]' J e$ ^$ h1 f( Flanding impact. Do not forget to Roll when the body hit the ground. ! u3 T6 r m; w6 rTVBNOW 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 0 w/ K3 s# W5 R( z$ f" W1 w4 a- G$ q, m
facing the away direction, the forward momentum will make you fall on the back 5.39.217.772 T0 E5 c, s1 `/ w2 d0 w3 b- g
of your head first, it could be a fatal hit.公仔箱論壇+ n& x& e R! Q% }
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" * u" H: x8 r u! KI doubt this is true.5.39.217.778 g5 Y! O5 y; l$ N% [: E% ^! Q
If you are carrying a forward momentum and when the body/ object landed, the / L- c: [! N/ e1 A& Y; j K5.39.217.77momentum will continue its direction unless affect by other external force. (Baisc - S W2 W: G6 L) K2 s* Y) N公仔箱論壇Newton Law) ie. The body will continue to move forward, your forehead will hit 5.39.217.77* n1 |5 U7 f) l/ _" v) o/ m3 r
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
