1. a = 5 / c2. , , n - , , . v0 = 0.
2. R = 4 . : S = A + Bt2, = 6 , = -2 / c2. t, an = 9 / c2, v, a t a .
3. , 10 5 /2. : 1) ; 2) .
4. R = 30 e. a t , , t = 4 c 3 an = 2.7 /2. : e>0 e<0.
5. :
s = 2 + 0.4 t + 0.1 t 2 + 0.03 t 3.
: 1) 2 /2. 2) .
6. R = 10 a t. an t = 20 , , v = 10 / c.
7. h = 28 v 0 = 8 /. v .
8. R = 10 , :
j = A + Bt + Ct2 + Dt3 ( = 1 /, = 1 /2, D = 1 /3).
: 1) a t; 2) an; 3) .
9. 1 v 0 = 10 / c , 2 h 1 = 11 . : 1) t, ; 2) v 12 .
10. R = 10 e = 3.14 /2. :
1) w; 2) v; 3) a t an ; 4) .
11. t 1 = 0.5 c v 1 n = 1.5 . v 0? .
12. , a =45º , h = 40 , v 0 = 200 /? .
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13. C . t = 2 S = 40 . : 1) v0; 2) v; 3) j, v . .
14. v 0 = 200 / a =60º . : 1) y = y (x); 2) hmax; 3) s. .
15. v 0 = 15 /. , : 1) S; 2) an a t t = 1 .
16. H = 50 v 0 =20 / a = 60º . , : 1) s ; 2) v ; 3) j, .
17. v 0 = 15 /. , : 1) y = y (x); 2) R t = 2 .
18. v 0 = 30 / a = 45º . , t = 1 : 1) a t; 2) an; 3) .
19. H = 25 v 0 = 15 /. , : 1) s ; 2) v ; 3) j, .
20. a v0. t = 2.2 c. , .
21. a m = 4 , F = 20 , a = 300 ? m = 0.2.
22. m = 50 F 1 =100 . F 2, , μ = 0.3?
23. M = 2 (. .) B (m 1 =0.5 ) C (m 2 = 0.3 ). , :
1) a, ;
2) .
24. 
= 30, . , m=0.1.
25. m 1 m 2 , (m 1 = 400 , m 2 = 600 ). m2 ?
26. m = 1 , S : S = Asin(w t), = 5 , w= p /. , t = 1/6 .
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27. m = 0.5 , : x = A - Bt + Ct2 y = Dt3, =1/ c2, D = 2 / c3. F .
28. m = 1 , x : x = A - Bt + Ct2 Dt3, =5/ c2, D = 1 / c3. F .
29. C l = 2 h = 1 . m = 0.15. : 1) , ; 2) ; 3) .
30. , v 0 = 10.8 /, t = 1 . , ? m = 108 .
31. m1 = 10 , v1 = 4 /, m2 = 4 , v2 = 12 /. C , , u : 1) , ; 2) .
32. , m = 50 a = 30 l= 4 , t = 2 , m = 0.06.
33. m1, v1 = 5 /, m2. , . u , D , . : 1) m1 = 2 , m2 = 8 ; 2) m1 = 8 , m2 = 8 .
34. , . . m1 = 60 , m2 = 20 . ( ) , ( ) v = 1 /? , ? .
35. m = 1.8 v = 54 / ( a= 3). , , .
36. m = 1 v0 = 10 / c a = 30 . , , : 1) t= 0.3 ; 2) .
37. m1 = 240 m2 = 60 . v1 = 2 /. v= 4 / ( ). u : 1) ; 2) , .
38. m1 = 2 m2 = 8 . 1 10 ∙/ c. , . : 1) ; 2) ; 3) , .
39. m = 12 , v = 0.6 /, = 10 , , . : 1) , , ; 2) , .
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40. . = 15 . a = 60 . v1 , m = 20 v2 = 600 /?
41. R = 30 m = 3 l = 5 α = 25. J , v =4.6/.
42. , , . , 3 . , , , .
43. R = 10 m = 5 φ = A + Bt 2 + Ct 3 ( = 2 / c 2, = 0,5 / c 3). t = 3 .
44. m = 10 a = 20 . , . , , .
45. l = 50 m = 400 ε = 3 / c2 , . .
46. , R=2 , m1 = 80 . m2 = 240 . , . , , , v = 2 / .
47. m = 10 v = 800 /, n = 3000 c-1. d = 8 , .
48. m = 4 . v = 1 / c.
49. l = 2.4 m = 8 , . n1 = 1 c-1. C n2 , ? J = 6 ∙2.
50. ε = 0.4 / c2. t2 = 25 , t1 = 10 L1 60 ∙2/ c.
51. , 3 .
52. , = 1 ?
53. , ?
54. , , .
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55. , 0.5 ( ). , : 1) ; 2) .
56. ( ), , 90% ?
57. T 0?
58. , 99% ?
59. . , n = 4 ?
60. v = 0.8 ( ). l = 90 . ?
61. 31016 -3, 8.51016 -3. , 1 3 ?
62. 0.2 3 105 290 . 3105 , 320 . ?
63. < v > m = 10-8 , ?
64. 40 1.98 . 3106 . ?
65. 7 , 27 , 50 . 4 60 444 . ?
66. = 300 . < ε > , , n = 0.5 .
67. r , = 100 =300 .
68. 50% ? , 10 .
69. , , 45%, 40%. , = 280 ?
70. m = 0.1 1 = 200 2 = 400 . , , Q, , D U.
71. cp cv , , m = 0.03 / cp / cv = 1.4.
72. 1 146 . ?
73. V = 2 , r = 1.4 /3. Q , D = 100 ?
74. 100 , 30 . 80 , -2 . , . = 4.19 /( × ), = 2.1 /( × ), l = 330 /.
75. , , 2/3 , , . 2 = 280 . : 1) ... h ; 2) 1.
76. m = 10 V 1 V 2 = 2 V 1 = 575 . .
77. (n = 5 ) , D S =57.6 /?
78. . n = 4 . ... .
79. 0.86 48 370 14 . ? =4.19 /( × ), = 0.23 /( × ).
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80. n = 1 1.5 . , : 1) ; 2) .
2.
