, , . , , , , . . . ( ). , . , ( ). v (. ). (. ) v = v + ΩR. , .. R v. (1). m, , F=ma. , . R, = v. a = . , a , F, . F = m a. a (1): a = a - 2 vΩ mΩ2R (2) m : F = F 2mvΩ mΩ2R (3), F=ma . . , F 2 : 2mvΩ ; mΩ2R - , v. () , . - . . F = 2mvΩ . , , - v w : . , F=2mvΩsin( , ). . , . , ( .( , ()).
10. . F=-gradU.
. . . d , d = d cos(, )-; dA = F ds cosθ( F ds); dA = * =(, ). , c ds. dA= . A= . , , , . , t, : , , A = 0. , , . , (A1c2 + A2d1 = 0). F = mgsinα..A32 = mgh. A312 =U + A12 = mgsinα*l = mgh. .. , . - , , . A= - U. U, .. O P P. U=U(x,y,z). A12 =U1 U2, U1 U2 . 2 P P .
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P→()P A= - dU, d = *d = *d dA= FSds. : - dU = FSds => = - (3) F = - grad U= - U ( - = ). F=