"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"tvb now,tvbnow,bttvb q; W+ j7 e/ A- p. U
I doubt this is true.tvb now,tvbnow,bttvb7 w. s, v, A6 U2 I2 ?# P! I$ S
If you are carrying a forward momentum and when the body/ object landed, the
z3 w# p' ?1 O公仔箱論壇momentum will continue its direction unless affect by other external force. (Baisctvb now,tvbnow,bttvb2 O0 D" ]$ V3 a3 v$ }
Newton Law) ie. The body will continue to move forward, your forehead will hit . i m5 \) d+ x) y. t; c
the ground first unless you lean back when you jump off the moving object. |