[請益] 一題物理
有一盤曲在光滑桌面上的鐵鍊,每公尺長度之質量M kg 。
若持鐵鍊一端,而鉛直等速v ,上移x時,所施功率為何?
3
Ans: MV + Mgxv
算了很久..算不太出來
為啥我覺得後面那一項是 -Mgxv 阿 .. 總之不太會算
麻煩了~ 謝謝喔^^"
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