1.1.
60 /, - 30/.
?
1.2.
60 /, - 30/.
?
1.3.
10 /, 16 /.
.
1.4. = 4t, =3t, z = 0. , . 5 ?
1.5. V= 10/, V= 15/, . .
1.6. , , ¼ 16 /, 8 /.
1.7. , 15 / , 210 60 . .
1.8. , , S1= 210, , , 2 . ³ S2= 780
1.9. t=120, , t=30. , .
1.10. . , V1= 2/, V2= 10/?
1.11. ҳ 9,8 /. h i V t 0≤ t ≤ 2 0,2 .
1.12. ҳ 19,6 (V 0 =0). 0.1 ?
1.13. ҳ 19,6 (V0 = 0). 1 ?
1.14. ³
. 3 h t ?
1.15. , 10 /, 6,0 /. ?
1.16. 1000, V 1=25 /, V 2=250/. ?
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1.17. 36/. , , , t=20. ? S ?
1.18. , , t=1,00 40.0/ 28,0/. S, .
1.19. , V1 =15 / , V2=10 /, = 30.
1.20. ,
500, V1= 100/,
, , V2= 30/.
1.21. = t+bt2+t2, = 5,0 /, b=0,20 /2, =0,10/2. t=2,0 t=4, t1 t2.
1.22. , x=4t2 +2; =6t2 -3;z = 0. , , .
1.23. : = 8t2 + 4; = 6t2 - 3;z = 0. t=10 .
1.24. t = 10 , x=2t2 + 3t 4, = t2 + 4t 2,z = 0?
1.25. r=3t2i+4t2j+8tk. , 4 .
1.26. , X, V = 0,2 - 0,1t. t=10, =1 .
1.27. ҳ, , S=15 t1=2,0 t2=1,0. .
1.28. , , 10, = 30 + 2t. t0=0 S=0.
1.29. , () 60 2 4,0 . .
1.30. 15,00/. t =1,00 .
1.31. 10,00 /. t =3.00 .
1.32. ' 10,00/ =40 .
'?
? ?
1.33. ҳ. 19,6 /, n =1/4 . . 3 ?
1.34. .
t=2, t=0 V0=3i+1j 1k.
1.35. =30 . , , , ?
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1.36. , - r = 2ti + 8t2j?
1.37. - r =3ti + 0,t2j. t=5 .
1.38. ϳ ,
, ᒺ ?
1.39. ϳ , ,
1/4 ?
.
1.40. 19,6 10/. . ? ? .
1.41. 1 2 . t=2,0 , V0= 10 /, 1 =30 2 =60.
1.42. , =45 V0= 20/, β = 30? .
1.43. ҳ V0= 15/. τ, t=1 .
1.44. ҳ V0. , V β .
1.45. ҳ 0 V0. ( ) .
1.46. 19.6/. 2,0 . ?
1.47. , =3sinωt, y=3cosωt. . , , t=0; S=0.
1.48. . , : =3sinωt, = 2sφt.
1.49. , 200/, 20 . , . , 18
1.50. , 24/, R=9,0. , d=1.5.
1.51. , V0 =60 / t=3.0 ? ij D= 0.70. ?
1.52. ,
N=20 0=1,0/ =5,0 /.
1.53. , Z φ=t-bt2, =20-1, b=1-2. ? .
1.54. , R=20, τ=5/2. t () τ = 2 ?
1.55. , R=1 t=10 S=50. n=5 ?
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1.56. ³ V. ³ , . V , V .
1.57. ϳ , , V =30. /t?
1.58. , ω=240 / t=0,5. , N .
1.59. Ⓙ V= 54/ S=600 t=30. R= 1. V .
1.60. R=10 , . =0,02 /2. , h=1 ?