✔ 最佳答案
Q:為什麼我在行駛中的巴士裏,原地一跳,不會讓巴士在向前行駛的時候使我向後直至撞到巴士的後端?
A: When you are in a moving bus, you are travelling forward at the same speed with the bus. If you jump up, your speed with the bus doesn't change, it is such speed that prevents you from lagging behind the bus.
This is the principle of inertia (慣性), which forms Newton's First Law of motion.
Q: 若一隻小鳥在行駛中的飛機裏飛翔,它不會因自身速度不夠飛機的速度快,而使小鳥從而向後撞到飛機的後端?
A: The air inside the cabin of a flying plane is of the same speed with the plane If not, you would feel a very string wind blowing when you sit inside the flying plane). The air carries the bird forward together with the plane.
Q: 若不幸發生了墮lift,在升降機著地前一刻我跳起來,會否沒事,還是是不能跳?
A: When the cable of a lift is broken in an accident, the lift car will be under free fall. Under such situation, you will experience a state of weightlessness (失重狀態). You really cannot "jupm up".