[問題] 物理!
在這發文應該不會被打吧!
反正大家都很厲害XD
兩題物理
大家請為小鏡解惑0_<
(1)
有一個密封的箱子裡充滿水,箱內一木球,比重0.8,體積50cm^3
以繫繩繫於箱底,若箱子鉛直向下做4.9m/s^2的等加速度運動
則繩子的張力為?
Ans:5gw
(2)請發揮想像力理解圖0_<
_ ABC質量均為m
| 彈簧之彈性常數為K
O A 平衡如圖所示
| 現以一剪刀將A與天花板間繩子剪斷
O B 求剪斷瞬間,A與B之間細繩之張力
∥→彈簧
O C Ans:mg/2
第一題應該不需要圖吧(思
需要的話再跟我說XD
嗯嗯,就這樣我累了~
就請神人為我解題吧!
喔哈哈我滾走了~~喵
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