38
.
’ :
:
5. 11. 2001 A2/a
: : 20
: 10
45min .
S.I.;
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.
x-t, u-t
-t.
H
.2
:
. .
. .
.
.
.
.
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x
t
t
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t
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t
c
1 2 at 2
3. x
d
3t
5. x
4. x
u0t
1 2 at 2 x
,
6. u
.1
4 3t 5t 2 .
;
t0=0s 5m/s2. u=3+10t.
a. b. c. d.
x0= 4m,
t0=0s
3m/s.
6m/s. 2
- 4m/s .
e.
.2
a1=1m/s2.
t1=10s u . .
2001a1.doc
.
x2=200m.
: .2 .3
38 . .
2001a1.doc
.
â&#x20AC;&#x2122; x0=+50m
.3 .3
38
.
â&#x20AC;&#x2122; :
:
5.11. 2001 A2/b
: : 20
: 10
45min .
S.I.;
.1 ,
, ,
x-t, u-t
.
a-t.
.2
x
x
t
t
a
t
b
1. u
c 3. u
2. x
t
u0 at
d 4. x
u0t
1 2 at 2
5. x
1 2 at 2
u0t
6. x
3t
. u>0 u>0 u<0 u<0
.2
.1
<0 >0 <0 >0
H
: . . .
a. b. c. d.
.
.1
x
,
2 3t
2t 2 .
;
t0=0s 2m/s2. u=3+4t.
a. b. c.
x0=0m,
t0=0s
d.
3m/s.
3m/s. 2
- 4m/s .
e.
.2
a1=1m/s2
t1 u=20m/s. . . . 2001a1.doc
t =30s.
: .2 .3
38 . .
2001a1.doc
.
â&#x20AC;&#x2122; x0= -2m
;
.3 .3