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2002

L= 8 mH, C . . t = 0 , T = 8.10-4 s. H E = 9.10-5 J.

:

. C

.

. t1,

. t1. ( ).

2008

1, 2 . y = 0,01(10t) (SI) 1,5 m/s.

1 0,6 m 2 1 m, . 1, 2 t = 0.

1 2

. .

. ;

. .

. , t = 4/3 s.

2004

R = 0,2 m = 3 kg . 1 m1 = 1 kg . . h 2 m2 = 3 kg k = 200 N/m . 1 . t = 1s 1 2, . . :

. 1 .

. .

. .

. , x = 0,1 m.

.

: : g = 10 m/s2 :

2006

= 6 kg R = 0,25 m . . 1 2 m1 = 4 kg m2 = 1 kg . 2 3 m3 = 1 kg, =100 /m. .

, (t = 0), 2 3 3 .

. 3.

. 3 , , .

. 2 3.

. t = 0,1 s.

, , g = 10 m/s2 .

2003

, ( = 2 m = 0,3 kg ( ) , . 1 m = 0,1 kg, 1 = 1 rad/s. 2, 1, , k = 20 /m . 1 ( ). . . 1 , 1 2 . :

. - 1 .

. .

. - .. .

(: = 3,14).

2005

= 1 m = 6 kg, m = 2 kg.

, , . = 30 .

A. :

.1. .

.2. - .

. , . :

.1. - , .

.2. , .

: : Icm=(1/12)M2 g = 10 m/s2.

2006

= 2 m = 3 kg, , . , m = 0,5 kg. h = 0,8 m . . . . :

. .

. .

. .

. .

. .

: : Icm = (1/12) M2 g = 10 m/s2.

2007

= 6 kg R = 0,1 m . . h = 5/3 m cm = 5 m/s.

:. .

. .

. , . . . : g = 10 m/s2

2004

1 m 30 . . 30 , .

. .

. . :

1. .

2. , 60 .

3. , .

: = 1 kgm2 .

2007

= 2 kg R = 0,2 m , = 0,6 :

.

:

. .

. .

. , h1 = 4,8 m.

. h2 = 2,4 m. o: g = 10 m/s2 .

2008

M = 6 kg R = 0,3 m. 1 2 m1 = 5 kg m2 = 2 kg.

H 1, 2 1 , 2 .

t = 0 . :

. 1 2.

. .

. , , t1 = 2 s.

. t2 1 , 2 h = 3 m.

: g = 10 m/s2 . : , . 1 2 .

2002

, , , = 4 g ( = 1,5 m , , . , , .

( ). Icm = (1/12) M(2.

. .

. , . .

. x, :

. .

. .

: g = 10m/s2, 45o = 45o = = 0,7.

2003

( = 4 m, M = 3 kg , . , , m1 = 0,6 kg . m2 = 1 kg, k = 100 N/m. . 2,8 m. , .

. :

.1 m1

.2 .

. , m2 , m1, ,

. :

.1 m2

.2 , .

: g = 10ms-2, : Icm= (1/12) (2 , = 3,14.

2004

m = 10 kg R = 0,1 m = 0,56. t = 0 o = 8 m/s. :

. t = 0.

.

. .

. , 30/ .

: : = (2/5) mR2 g = 10m/s2 .

2006

= 3 kg . F 9 , . R1 = 0,1m R2 = 0,2 m, .

(/4. , . . = 0,09 kgm2. R1 m = 1kg.

. .

. m , .

. , . m, 0,5 m. .

. 0,5 m.

g = 10m/s2.

2007

L = 0,3 m = 1,2 kg . . .

. .

. .

m = 0,4 kg. L, . /5, .

. .

. .

: g = 10 m/s2.

2009

= 40 kg R = 0,2 m, , F 30, . , . .

. F, .

F = 130N, :

. .

. , h = 1m .

. F .

: g = 10m/s2, ,

2009

m = 5 kg R = 0,2 m ( ) , .

. h ( ), cm = 8 m/s. :

. .

. .

. h.

. , .

: g = 10 m/s2, .

2009

M = 10 kg R 2R, R = 0,2 m . I = MR2. , . m = 20 kg R. 2R , F.

. Fo , .

to = 0 , F = 115 N.

. .

h = 2 m, :

. .

. .

. F h. g = 10 m/s2, .

2010

( =1 m = 3 kg , . . . . , , g = 10 m/s2.

:

. , .

. .

. .

. .

2010

m = 2 kg r = 1 m. = 30 . x = 2 m t = 1 s.

. .

R. 2 = R2 . . .

, , , . .

. 1/2 1 2 .

. = 1,4 kg .

g = 10 m/s2, 30 =

2010

, . /4. F = 20N.

. m .

, , . :

. , = 3,75 rad/s2.

. m , . . , , = 0,3.

: g = 10m/s2, Icm = .

2011 3d (d = 1 m) , . 2d mA = 1 kg , d m = 6 kg. , , = 4 kg m1 = 2 kg, m2 = m3 = 1 kg. .

1. .

, .

2. , 30o .

mA , m4 = 5 kg.

3. .

, , m2 m3 mA m.

4. m, ;

, .

: g = 10 m/s2, 30 = 1/2, = MR2/2.

2011 m = 1 kg, r = 0,02 m cm =2/5 mr2, h = 9 m , .

. , R = 2 m , :

1. .

2. .

3. .

4. , .

.

: g = 10m/s2

2011 m = 4 kg R = 0,5 m. 1 2 m1 = 2 kg m2 = 1 kg . (to = 0) .

:

1. 1 2.

2. .

3. t = 2 s.

4. , h = 3 m.

: g = 10m/s2. =(1/2) mR2. .

2011 L = 3 m = 0,4 Kg . d = 1m , . = 100 /m 1 m1 = 1 Kg. , 1.

1 d . , 1 F = 40 N . 1 s = 5 cm, , , .

1. 1.

2. FA 1 .

2 m2 = 1 Kg 2 = m/s. , 1 x1, x1 0. 1 .

3. x1.

4. .

. .

: g = 10m/s2

Doppler

2003

m1 = 0,1 kg h, . , 1 = 2 m/sec m2, m2 = m1 .

m2, , m3 = 0,7 kg. m3 k = 20 N/m, . , m2. .

:

. h m1 .

. m2, m3 .

. .

. t = /15 s .

: g = 10 m/s2.

2005

= 60 /m, 1 m1 = 17 kg. To . yy . 2 m2 = 3 kg o = 12 m/s. h = 2,2 m 1. 2 fS = 700 Hz.

. 2 1.

. . y , . (t = 0) .

. . f, .

. fA,max fA,min .

= 340 m/s g = 10 m/s2.

2007

m1 . . - t = 0 , .

x = 0,110t (SI). = 6 J. t = /10 s