This is Not True ( k, d: ?! d7 C/ e+ M+ y2 G(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 5 {8 x, {" ^ i: D' b0 ?tvb now,tvbnow,bttvbeffect is not significant. OK this explain the speed aspect. : ^: a) P3 [' N: Y( a2 k5 Z! E9 U* M(b) Jumping direction: if you were in a car or a train carriage, you do not have a 5 W- i0 V9 E' n; Y" |* Pwww2.tvboxnow.comchoice 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 : ]7 p% K1 f5 h5 o8 B9 b: C' B# rlanding impact. Do not forget to Roll when the body hit the ground.# d8 P- d7 o1 @4 l4 `& A# x; `
(c) Make sure when you jump, you are facing the forward direction. If you are 公仔箱論壇: W) f+ P* o" ^9 y& E
facing the away direction, the forward momentum will make you fall on the back 4 q& J8 P4 O l6 W4 [9 ` t公仔箱論壇of your head first, it could be a fatal hit.. L3 \* t7 U7 y) h# m3 w$ p" s# \
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"www2.tvboxnow.com4 \; o* d' o4 A5 w5 N1 [. k! n
I doubt this is true. ! K2 ]/ L9 w, ?1 P. k, b; @% ?www2.tvboxnow.comIf you are carrying a forward momentum and when the body/ object landed, thetvb now,tvbnow,bttvb1 w. Z5 K# F/ F6 {) q
momentum will continue its direction unless affect by other external force. (Baisc 4 P4 [( X1 p9 h$ ]tvb now,tvbnow,bttvbNewton Law) ie. The body will continue to move forward, your forehead will hit : ?% S( U2 d2 c" g! L' Bthe 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
