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46

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47

MijZ`g_gb_

1.

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aZjy`_ggZyqZklbpZ

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1.

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I = 4 A;  F = 0,2 H

l

 kf f

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Le

5

,

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f

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⋅

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GZclbB.

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2.

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2

 fh`gh f_gylv

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1.

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2

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mijZ`g_gbb

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1.

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ν

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ν

GZclb T.

Hl\_lT  k

2.

Ih]jZnbdmgZoh^bfqlhT=

k

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1.

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ν

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ν

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t = 8,3

⋅

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c = 3

⋅

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J_r_gb_

S = ct = 3

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fk

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k  f

GZclb S.

Hl\_lS = 249 f

3.

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λ

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c = 3

⋅

10

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ν

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ν

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ν

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4.

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ijhc^_ggh_ jZkklhygb_ S AZ \j_fy t kb]gZe ijhc^_l jZkklhygb_ S

lm^Zb h[jZlghbke_^h\Zl_evghS = ct/2.

5.

G_la\mdh\u_\hegug_jZkijhkljZgy_lky\ \Zdmmf_

MijZ`g_gb_

1.

K

12

6

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6

3

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40

20

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2. 6, 3, 20.

55

3.

< n =

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1

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4.

Z [ Z_f\ \ jZa] ^ _ ` 

5.

N

O

O

K

14

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14

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MijZ`g_gb_

H

O

He

N

1

1

17

8

4

2

14

7

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→

+

 Bf__f             Ke_^h\Zl_evgh

aZdhgkhojZg_gbyaZjy^Z\uihegy_lky

MijZ`g_gb_

1.

< y^j_ ZlhfZ [_jbeeby Be

9

4

gmdehgh\ ²  ijhlhgh\ ² 

g_cljhgh\²N = A + Z = 9 – 4 = 5.

2.

D

39

19

 Z  Z    [  N

p

= Z

   \  Q     \ we_f_glZjguo

we_dljbq_kdboaZjy^Zo ] N

e

= N

p

 ^ _ ` :  a N =

A – Z =

 ±  b m  Z_f

3.

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eblbc[ nlhj

MijZ`g_gb_

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MijZ`g_gb_

1.

He

Th

U

4

2

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238

92

+

→

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2.

~

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Pa

;

~

Pa

Th 

0

0

0

1

234

92

234

91

0

0

0

1

234

91

234

90

+

+

→

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→

−

−

e

e

 Ke_^h\Zl_evgh \

j_amevlZl_^\mo

β

jZkiZ^h\

MijZ`g_gb_

Ld gmdehgu bf_xl fZkkm lh f_`^m gbfb ^_ckl\mxl kbeu

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56

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U

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2

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5

,

0

5

,

0

(

|

|

−

+

−

=

a

U

= 3.

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U

bf__fZ     [ b

y

 ±  \ _b

y

_ ]

2

2

)

0

4

(

)

1

4

(

|

|

−

+

−

=

b

U

= 5.

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U

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y

 ± \ _c

y

_ ]

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2

)

1

1

(

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4

6

(

|

|

−

−

−

=

c

U

= 2.

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U

bf__fZ    ± [ d

y

 ±± ±\ _d

y

_ ]

2

2

)

0

4

(

)

6

3

(

|

|

−

−

+

−

=

d

U

= 5

>ey\_dlhjZ

→

e

bf__fZ  ±   [ e

y

 ±± ±  \

|e

y

_ ] 

2

2

))

4

(

1

(

)

5

,

0

5

,

0

(

|

|

−

−

−

+

−

=

e

U

= 3.

2. a

x

= 0, b

x

=

|

| b

U

, c

x

= 0, d

x

=

|

| d

U

−

.

3.

Z A (0;2), B  ± [ s

x

= 12 – 0 = 12, s

y

 ±±  ±\ _s

x

| = 12,

|s

y

| = 5;

] 

2

2

)

2

3

(

)

0

12

(

|

|

−

−

+

−

=

s

U

= 13.

4.



















x

y

B

A

s

AB

=

2

2

))

2

(

3

(

))

8

(

4

(

−

−

+

−

−

 LZddZdimlvg_fh`_lij_\ukblv

i_j_f_s_gby fh^mevdhlhjh]h_klvgZbf_gvr__jZkklhygb_f_`^m

gZqZevghcb dhg_qghclhqdZfbimlb lhhgfh`_l[ulveb[hjZ\_g

eb[h[hevr_i_j_f_s_gbyghgb \dh_fkemqZ_g_f_gvr__]h

5.

Ijyfhebg_cguf jZ\ghf_jguf ^\b`_gb_f gZau\Z_lky lZdh_

^\b`_gb_ ijb dhlhjhf aZ h^bgZdh\u_ ijhf_`mldb \j_f_gb l_eh

kh\_jrZ_l h^bgZdh\u_ i_j_f_s_gby \^hev g_dhlhjhc hkb  lZd dZd

^\b`_gb_ ijyfhebg_cgh_  Ihwlhfm s

x

= v

x

t

 ]^_ v

x

² ihklhyggZy

57

\_ebqbgZ oZjZdl_jbamxsZy kdhjhklv i_j_f_s_gby Bkoh^y ba

mjZ\g_gbyo = o

0

+ s

x

ihemqbfx = x

0

+ v

x

t.

6.

>Zgh

v

x

 fkx

0

 f

J_r_gb_

x(t) = x

0

+ v

x

t

⇒

x(t) = 3 + 5t.

GZclbx(t).

Hl\_lx(t) = (3 + 5t f

7.













x

i

x

l

x

\

X