[題目] 牛頓運動問題
題目是這樣的
http://ppt.cc/2gi4
電梯內放一水杯,水杯裡浮一個木塊
今電梯忽然以加速度a加速上升
則木塊吃水深如何變化?
我覺得由於慣性木塊會吃水更深
不過答案給的是不變?
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◆ From: 114.42.92.73
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慣性這個想法哪裡出現了問題?是否有直觀的想法?
※ 編輯: GuanSi 來自: 114.42.92.73 (10/13 00:29)
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感謝各位解惑
那如果電梯裡變成是有一個氣球浮在空中,其他部分都是空氣
電梯也一樣加速
氣球對電梯的相對位置會變嗎?
※ 編輯: GuanSi 來自: 114.42.92.73 (10/13 00:52)
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怎麼說呢?不太瞭
※ 編輯: GuanSi 來自: 114.42.92.73 (10/13 01:06)
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