This is Not Trueos.tvboxnow.com6 H; W8 ~- y! X* j: i
(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 公仔箱論壇 Q# |0 Y5 {- i1 \2 _) T4 F
effect is not significant. OK this explain the speed aspect./ Q+ i m8 Z3 M, s. z/ w! n3 t o
(b) Jumping direction: if you were in a car or a train carriage, you do not have a os.tvboxnow.com- R4 Q- P9 y; q, S" [' G' H
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 $ z+ G! k' o) ]8 d
landing impact. Do not forget to Roll when the body hit the ground. ( `, s0 Y2 O1 U, A+ U# [tvb now,tvbnow,bttvb(c) Make sure when you jump, you are facing the forward direction. If you are 0 \' @& Y* F5 G% l( tfacing the away direction, the forward momentum will make you fall on the back 1 m2 H6 Y. [4 z/ r) C: f* P% R
of your head first, it could be a fatal hit. + j) u2 D( Y& _7 F4 r9 K3 Z9 G6 F公仔箱論壇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" , s. G0 H; X4 F) V7 w% E" ^公仔箱論壇I doubt this is true.) F8 v1 [ t, V+ B u, G
If you are carrying a forward momentum and when the body/ object landed, the公仔箱論壇2 n$ X( _2 ~7 y, \
momentum will continue its direction unless affect by other external force. (Baisc公仔箱論壇$ `' X Y; ~) O0 \; F0 ]
Newton Law) ie. The body will continue to move forward, your forehead will hit & e) r/ ~3 I1 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。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
