1. , 1 = 5 2 = -3 .
2. 5 72 / 36 /. .
3. 18 / 108 / 875 . , .
4. s=12t-t2(). (t=5c).
5. , t = 4 c 12 /, =2 /2?
6.
Vx, / |
-2 |
-4 |
B |
A |
1. |
. :
. =
. = ____________.
t, c |
7.
t, c | / | ||||
X1 | |||||
X2 | . |
.
8. :
-2 |
-4 |
, |
t, c |
. :
v2=________________.
. L t =4 c:
2. |
9. . :
-4 |
-3 |
-2 |
-1 |
2 / |
2 / |
3. |
x2 = ________________. 2 = _____________.
10. , :
, |
10 |
4. |
. ,
. .
11.
. 5 |
, |
-2 |
-4 |
-2 |
-4 |
, |
S2x = ___________
S2y = ___________
12. , 800 20 /?
13. 1,2 300 /. , ?
1. , 10 /, 4 . ?
2. 10 0,6 /. .
3. . 0 = -10. 5 , .
|
|
4. 72 / 500 . .
2
1. , 100 10 /2 ?
2. , 15 /, , 25 /. , , 100 ?
3. , , 15 30 /. , 1,6 /2?
4. 40 , ?
1. ? ?
2. .
3. .
4. ?
2