1. (m) .
2. .
. 2.
3.
J(.+ ) = 
.
2
| - | n | t, | T, |  T,
| J(+)
| J,
|  ,
%
|
| . |
4. , J(+) J.
J, J(.+ ) = J.+J .
J =J(.+ ) J..
ʳ
J. =...; J(.+ ) =...;
J. . =...; J =....
5. .
1.
4
ֲ Ҳ
.
: , .
1.
, . , . . .
1
| 1 ; 2 ; 3 ; 4 . |
, , 㳿
mgh = 
+ 
.
,
J = 
md (
1), (1)
m ;
m = m + mp + m; (2)
m, mp, m , ;
d ;
t ;
h , ;
d = d + 2dn; (3)
d dn .
1. ( d; d; d; dn) , , ( ).
2. , "". , "0" .
3. , .
4. .
5. "".
6. t .
d =10 ; d= 86 ; d =105 ; dn =0,5
| - | t, | m, | h, | J,
| J(),
| ,
%
|
| 1 | ||||||
| . | ||||||
| 2 | ||||||
| . | ||||||
| 3 | ||||||
| . |
|
|
|
7. "" 5 .
8.
t. = 
,
n ;
t .
9. h.
10. (3) .
11. (2) .
12. (1) J.
13. : J = J J', J' , J' = 6 10 
.
14. .
15.
J. . = 
m (d + d ).
16. :
= 
100%.
1.
132
Ͳ ̲
, ; .
: , , , , .
, , .
(.1), 
, :
= 
.
, . : = r F sin = F 
,
, = r sin.
- m, v - , -  = m  ,
=  ,
, = m .
L = r m v sin, = (, ).
| 
1
|
Ji , r
Ji = mi ri . (1)
C
J = 
Ji J = 
mi ri (2)
г , , 
= . (3)
, :
, , , .
, z, ,
|
|
|
, (4)
L ; .
г (4) , : , .
, J = nst
= J 
, 
= , J 
= ,
J ; ; .
, , ' 㳺 .
| ˳ |
| 
| |
| ˳ | 
| 
| |
| ˳ | 
| 
| |
| C |
|
| |
| = m
| = J
| ||
m
 ;
 ;
| J
 ;
 ;
| ||
| ʳ | W =
| ʳ | W = 
|
(.2). ³ , R
| . , . m, . . | 
2
|
г :
ma = mg F,
F , F = m(g a).
2 F ( ):
M = F R = mR(g a),
R .
, t, h:
= 
.
, 䳺 , :
M = mR (g ). (5)
' :
= R = 
. (6)
J = 
,
J = mR 
. (7)
.
