[題目] 慣性和假想力?
[領域] 牛頓第一運動定律
[來源] 參考書
[題目] 如圖水箱內懸有一木塊,當車向右加速時,箱內的木塊應如何擺動
________________
| |
| 水|
| □ 木塊 | →a
| | |
| | |
| | |
|_______|________|
[瓶頸]
之前碰到的題目都綁氣球,而沒有水,所以會依照慣性保持原來的狀態而向後擺
可是這題卻是向前擺,參考書上的解釋是:木塊與水兩者間,木塊的密度較小
故相同體積的水與木塊比較之下,木塊的質量較小,慣性較小,故應向前傾
這個解釋我看不懂,木塊和水慣性的大小跟這個問題有什麼關係?
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