物理:在旋轉圓盤上跳起的問題?

2015-08-18 1:42 pm
如果有一個人站在旋轉的圓盤上跳起,那他會在原來的起跳地方降落嗎?為什麼??即是會不會像在火車上跳起,然後在原來的起跳地方降落?

回答 (2)

2015-08-19 3:47 am
✔ 最佳答案
No. When the person jumps up, there is no longer any centripetal force acting on him. He will then moves in a straight line (Newton's 1st Law of motion) and will not follow his original circular path.

The case in a train is of different situation, because the train is already moving in a straight line.
2015-08-18 1:50 pm
不保證正確
不會,由於失去圓盤所給予人的摩擦力作為向心加速度
人不會在原相對位置降落
從地面不動處觀察時,人會依據原本慣性的方向前進
水平地面的速度通常應約略地指向圓盤旋轉切線方向


收錄日期: 2021-04-11 21:15:58
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