, mgh = mv /2.
. ( , 4 ., , 1875, . 87): , , (. 185) - 325. , .
* . .
. ____________________________ 4
1/2 mv2 , . , ... , .
. 1847 . , , , , : mv2/2 mv2! mv2/2. mv2/2 : , , . 7326, , , 2 ., . I, . 18327, (. ., . 27).
mv2/2 mv (. ., . 88). , , (. ., . 163):
, , . ( ], ( , , ), * .
, , , . , , .
, , , , , , , mv2/2 ,
. .
_________________________ ۻ. _____________________ 422
mv2/2 . , . , , mv2, mv /2 mv /2 , !
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. - work, labour. work, , . ; - , . Werk, , work, . , Arbeit, , , . Arbeit Werk.