[請益] about mechanics
各位大大好，
小弟在看classical mechanics ( Goldstein著 ) 時，
有一段 ( 第4頁末段 ) 不是很懂，
原文如下:
The force applied to a particle may in some circumstances be given
by the gradient of a scalar function that depends explicitly on
both the position of particle and the time. Hover,the work done on
the particle when it travels a distance ds,─> ─> -dV
F 。 S = ───ds
dS ,
is then no longer the total change in -V during the displacement,
since V also changes explicitly with time as the particle moves.
問題來了，到底V是如何跟時間有顯著的關係 ( 即式子長怎樣 ) ?
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※ 編輯: njvulfu 來自: 140.122.61.230 (03/02 21:16)
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03/03 00:33, , 1F
03/03 00:33, 1F