This is Not True ! [" e5 s) `8 j9 b# z5.39.217.76(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 ) I3 _9 [6 s$ b$ h% nTVBNOW 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. * e+ J, n# M7 c3 ^) G, l公仔箱論壇(b) Jumping direction: if you were in a car or a train carriage, you do not have a 6 G" j( k( z. ~/ 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。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 # j( R$ @+ }' i( ilanding impact. Do not forget to Roll when the body hit the ground. _5 A0 a. W5 O' g m8 Htvb now,tvbnow,bttvb(c) Make sure when you jump, you are facing the forward direction. If you are 公仔箱論壇3 k0 v' X2 a' l4 X; s) \- T
facing the away direction, the forward momentum will make you fall on the back 公仔箱論壇4 L- w% M0 a- q. {5 s, n
of your head first, it could be a fatal hit. , K t Y# W/ b% S) N5 `/ t8 fThis 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"2 K6 d4 ^* E2 O7 M& N
I doubt this is true.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。. P7 @ C6 Q# X3 M, x8 Q6 Q7 e
If you are carrying a forward momentum and when the body/ object landed, the5.39.217.768 ?: d* ?8 M7 i. q/ M& `
momentum will continue its direction unless affect by other external force. (Baisc8 B, L8 ~! @6 p; l/ J1 S
Newton Law) ie. The body will continue to move forward, your forehead will hit & d4 \# _, I1 ^ l- X; vthe 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
