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今本(此為底本,未經審校)
文出維基大典

者,本義功勳也,引以述物理之效,鑒乎英語亦然,work意即工也。物理命之以示功量。同道,行之有距,其乘積計以,物理式 ,倘二者有歧而又計有功,則加角度以算爾,物理式 。 名之者誰?法蘭西計學家賈斯帕-古斯塔夫·科里奧利是也。 由動能術有,自 增至 ,則功:

質量速度

功者之本義,力、移之內積也:

力、移正交則功為零(餘弦值為 之故也):

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