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    30-Jun-2015
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2. :: : . : . : . 3. :: !!! 4. ;; 1) ;2) ;3) ;4) ;5) ; 5. 1) ;2) ;3) ;4) ;5) ; 6. :: ,, ;; 7. 11.. (()) .. 22.. .. 8. -1 - 2m ( Kg) ( m) ( m/t)m x 9. 11.. .. 22.. .. 33.. .. gg.. 4.. 11 .. 10. 11.. .. 22.. .. 33.. .. ggrr.. 4.. 11 .. 55.. ,, (()) .. 11. 11.. .. 22.. .. 33.. .. ggrr.. 4.. 11 .. 55.. . 66.. ,, (()) .. ,, .. ;; 12. 11.. .. 22.. .. 33.. .. ggrr.. 4.. 11 .. 55.. . 66.. .. 77.. .. 13. 11.. .. 22.. .. 33.. .. ggrr.. 4.. 11 .. 55.. . 66.. .. 77.. 88.. ,, .. 14. 11.. .. 22.. .. 33.. .. ggrr.. 4.. 11 .. 55.. . 66.. .. 77.. 88.. .. 99.. xx .. ;; 15. 11.. .. 22.. .. 33.. .. ggrr.. 4.. 11 .. 55.. . 66.. .. 77.. .. 88.. .. 99.. xx .. 1100.. .. 16. == xx p m = 17. -- -- (( )) .. .. !!!!!! 18. 11.. ;; 8800KKgg 1100mm//ss..22.. ((11,,6677xx1100--2277 KKgg)) 11xx110077 mm//ss 66xx110066 mm//ss.. 4xx110066 mm//ss.. ;; ,, ;; 19. : 1 2 2 1. , 20. 1 p1 p1 2 :1 1 1 p p p D = -met prin 2 p2 p2 1 :2 2 2 p p p D = -met prin : 1 2 2 11 2 p p D = -D 21. p pD = -D 1 2 ( )p p p p- = - - met prin met prin1 1 2 2 p p p p- = - + met prin met prin1 1 2 2 p p p p+ = + prin prin met met1 2 1 2 p pmetolikprinoli=k 22. =p prinpmetolik olik 11. , M=1.000kg, m=1kg = 1.000m/s. ; 23. =p prinpmetolik olik *14. M=1.000kg . =500m/s, . m1 =800kg 1 =1.000m/s, . . 24. =p prinpmetolik olik ;; ;; , : . . . . ; ; 25. 11 22F21 F12 26. 11F2122F12 2 27. 22 F12 F12 2 1 2 t : u u u = - met prinF p p = -tF m a = D= = DF m m = - u uttF mtF mta DDDDD met prin met prinu2 21 22 21 22 21 2 1 21 2 F pt = D D21 2 28. ,, 11 !!!!!! FF pt= DD !!! .. !!!!!! !!!!!! 29. F pt= DDF ; ..4. . m=90kg, ; ; : g=10m/s2. 30. 3. 24m/s. 0,5kg 0,03s, ; p m p= u =arc arc arc p m p= =tel tel tel p p p p p p pD = - D = - D =tel arc tel arc............. . .. . .. . . . =F p = DD F = DpDFttu 31. 1100.. mm==110000gg 11 ==1100mm//ss 22==88mm//ss.. ::.. .... ,, .... ,, tt==00,,11 ss.. p m p= u =arc arc arc p m p= =tel tel tel p p p p p p pD = - D = - D =tel arc tel arc............. . .. . .. . . . =F p = DD F = DpDFttu 32. p F t p p F t D = D - = D .tel arc - p F t p. .arc telF pt + D == DD x . == xx 33. ;; , . !!! ;; , . . . ! 34. F p D = Dp F tt= DD 22 F 11 F x 1 2 35. 2 ( ) . () ..22 F1211 F21 , : x . Dp = F Dt + F Dt @ F Dt 2 12 12 36. 22 F1211 F21 p F t F t F tD = D + D @ D 2 1 2 1 2p F t F t F t1 2 1 2 1 D = -D p p p pmetolikprinolik= D = D + D @ D ... 1 1 37. =p prinpmetolik olik ;; ;; , : . . . . ; ; 38. =p prinpmetolik olik ;; ;; . () . ! 39. p = m == xx 22 NNeewwttoonn F = Dp == Dt == xx arc . tel . p F t p + D = =p prinpmetolik olik ==