This is Not True E' ~, m7 y$ a) f+ l1 ](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 + f8 C2 [+ d; X' q1 ^' y; }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。effect is not significant. OK this explain the speed aspect. + N: O: d" m- N(b) Jumping direction: if you were in a car or a train carriage, you do not have a 8 r0 W. F6 T6 a$ q8 h: J/ Tchoice 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 ' |6 L$ G9 y1 ~$ D/ W$ d; 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。landing impact. Do not forget to Roll when the body hit the ground. ( ?) O9 Z4 u! i; c) H5 }4 I(c) Make sure when you jump, you are facing the forward direction. If you are 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。2 w1 v( y+ y5 g2 A( N% Z; {: I& z
facing the away direction, the forward momentum will make you fall on the back www3.tvboxnow.com7 J! G9 X2 e( T/ e/ t! R
of your head first, it could be a fatal hit. 2 `" A# e: L( o# k: Q% E! ntvb now,tvbnow,bttvbThis 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") U6 r9 y$ @" `2 L4 e
I doubt this is true.www3.tvboxnow.com2 G: t# ?/ V. k( B6 Z( y
If you are carrying a forward momentum and when the body/ object landed, the K1 |4 W$ J6 C7 p1 U4 k& S5 ?
momentum will continue its direction unless affect by other external force. (Baisc公仔箱論壇) X; K; @" e/ e& Y5 ?3 w6 ?
Newton Law) ie. The body will continue to move forward, your forehead will hit # _; o5 A" Z! A* [- E3 [9 _
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
