3 ( 30103)

5 2 2555

1

3 30103 5 2 2555

1.

2.

3.

4.

5.

1 2 3 1. 3 1.1 1 7 1.2 2 9 2. 10 2.1 1 15 2.2 2 16 2.3 18 1 20 2.4 25 3. 27 3.1 31 3.2 34 3.3 37 4. 41 4 46 2 49 52

-1-

1.

2.

3.

4.

5.

6.

7. 8.

9.

-2-

1.

2.

3.

-3-

1.

2

A

B

C

6

8

7.2

1

-4-

A B C

1

A B B C 14 (Distance, S)

A C 7.2

(Displacement, S )

1.

2. A B 12

C 5

A

B

6

8

C

(Distance, S)

(Displacement, S )

C 7.2

A

B

-5-

= AB + BC = 12 + 5 = 17

2 2 = AC = 12 + 5

= 144 25 = 13

3.

1. (s)

(t = 0)

(m)

2.

-6-

A B ACB AB

3.

4.

5. S

-7-

1.1 1

1 5

1. A B B C

2. 1 C A ....

C 3. 1

4. 2 C

5. 3 4 .....

6. 5 ... .......................................................................................................................................

C 5.5

A

B

8

12

-8- 710 7. A, B C

8. 6 .

9. A, B C

10..

A

B

C

-9-

1.2 2

1 6

A B C D

1. AB .

2. AB . .................... 3. AC .

4. AC .... .................... 5. AD . 6. AD .... ....................

3

4

4

A B

C D

-10-

2. 2.1

=

2.2

-11-

A B C 2 A B 120 25 B C 80 35 AB BC

(m/s) (m) (s)

25

2

B

80 A

C

120

90

25

-12-

(m/s) (m) (s)

A B

C

A B 120 25

B C 80 35 1. AB, BC AC

2. AB, BC AC

B

80 A

C

120

90

25 25

-13-

1. AB, BC AC AB

BC

AC

2. AB, BC AC AB

-14- BC

AC

-15-

2.1 1

1 6

A B C D 1. AB 8 m/s

2. AB 8 m/s

3. AC 10 m/s

4. AC 10 m/s

5. AD 22 m/s

6. AD 22 m/s

30

40

40

A B

C D

-16-

2.2 2

1-8 14

10

1. .................................................................................................................................. 2. .................................................................................................................................. 3. ..................................................................................................................................

4. ..................................................................................................................................

-17-

1 20

5. .................................................................................................................................. 6. .................................................................................................................................. 7. ..................................................................................................................................

8. ..................................................................................................................................

-18-

2.3

1. 84 60 .................................................................................................................................. 2. 1 .................................................................................................................................. .... . .... 3. 80 240 09.00 . .................................................................................................................................. 4. 200 20 .................................................................................................................................. . ....

-19- 5. 4 .................................................................................................................................. . ....

6. 300 400 10 .................................................................................................................................. . ....

7. 6 .................................................................................................................................. ... ... 8-10

()

()

0 12.00 78 13.15 108 14.05 145 14.30

-20-

8. ...............................................................................................................................

9. ...............................................................................................................................

10. ...............................................................................................................................

-21-

1

4-6

1. 4 - 6 ( 4 V 6 V)

2.

3.

-22-

( 1 ) = 150

10

10 x 150

= 15

=

V = 5

1

AB = ABx 5 m/s

1.

2.

3.

4.

A B

-23-

1. 1

...................................................................................................................

2. ...................................................................................................................

3. ...................................................................................................................

4. ...................................................................................................................

5. ...................................................................................................................

6. ...................................................................................................................

7. 4 ...................................................................................................................

3 ( ) 8-12

8. ....................................................................................................................

9. ....................................................................................................................

10. ....................................................................................................................

-24-

11. 150

550

..................................................................................................................... .. .. .. ..

12. 550

..................................................................................................................... .. .. .. ..

.............................................................................................................................

.. .. ..

-25-

2.4

1-10 4 cm

10 cm

50

1. .

2. .

3. .

4. .

A B C D E

-26- 5. A C . 6. C E .

7. .

8. B .

9. C .

10. D . ..

-27- 3.

()

1

= 2

-28-

1.

2.

3.

4.

2, ( = ( ( (

13 20 27 30

1. 20 2. 30

-29-

1. 20 v1 = 13 m/s, v2 = 27 m/s, t = 20 s

2

() 0.7 2 2. 30 v1 = 27 m/s, v2 = 0 m/s, t = 30 s

2

() 0.9 2

2 (m/s2)

(m/s)

(m/s)

-30-

30

20 40 15

1. 20

2. 15

1. 20 1v = 30 m/s, 2v

= 40 m/s, t = 20 s

2 () 0.5 2 2. 15 1v

= 40 m/s, 2v = 0 m/s, t = 15 s

2

() 2.67 2 (

-31-

3.1

1 t = 0 s t = 25 s

2 t = 25 s t = 50 s

3 t = 50 s t = 75 s

1-10

1. .

2. .

-32-

3. .

4.

.

5. 1 . . . . .

6. 5 . 7. 2 .. .. . . . . ,

-33-

8. 7

9. 3 . . . . . .

10. 9 . ..

-34-

3.2

1-10

2

= +

-35-

1. ................................................................................................................................... ......................................................................................................................................

2. ................................................................................................................................... ......................................................................................................................................

3. ................................................................................................................................... ......................................................................................................................................

-36-

4. ................................................................................................................................... ......................................................................................................................................

5. .................................................................................................................................. ......................................................................................................................................

6. .................................................................................................................................. ......................................................................................................................................

7. .................................................................................................................................. ......................................................................................................................................

8. ................................................................................................................................... ......................................................................................................................................

9. .................................................................................................................................. ......................................................................................................................................

10. 9 ( = x ) ................................................................................................................................. .....................................................................................................................................

-37-

3.3

1-2

(s) (m/s) 0 1 2 3 4 5

10 12 14 16 18 20

10

1. . . . .

2. 1 . . . .

-38- 3-4

(s) (m/s) 0 1 2 3 4 5

60 50 40 30 20 10

60 3. . . .

4. 3 . . .

5. 8 10 12 . . .

-39-

6. 72 8 . . .

7. 10 15 2 . . .

8. 7 15 18 . . . 9-10 4 cm

10 cm 50

A B C D E

-40- 9. . . . . . . .

10. C . . . . . . .

-41-

4.

9.8

2 (m/s2)

-42-

9.8 2 (m/s2) 0.1

g 9.8 2 (m/s2)

9.8

g -9.8 2 (m/s2)

9.8 0

g g

g g

g (+) g (-)

-43-

g g 10 m/s2 10 1, 2, 3, 4 5 10, 20, 30, 40 50

50 m/s

40 m/s

30 m/s

20 m/s

10 m/s

0 m/s

0

1

2

3

4

5

-44-

g = -10 m/s2

10 50

1, 2, 3, 4, 5 40, 30, 20, 10 0

50 m/s

40 m/s

30 m/s

20 m/s

10 m/s

0 m/s

5

4

3

2

1

0

-45-

(

)

g

2

-46-

4

(Gravitational acceleration) g 9.8

2 1

9.8

( g 10 2)

1. ..................................................................................................................................

2. ..................................................................................................................................

-47- 3. 9.8 2 .................................................................................................................................. ......................................................................................................................................

4. .................................................................................................................................. ......................................................................................................................................

5. ..................................................................................................................................

6. 1 ..................................................................................................................................

7. 300 ..................................................................................................................................

8. 5 ..................................................................................................................................

-48-

9. 40 .................................................................................................................................. 10. 6 ..................................................................................................................................

-49-

2

(

)

g

-50-

1.

1

2. 1

3. 2

2 3

4. 3

1

2

3

-51-

1. 3 1 2 3 .................................................................................................................................. 2. 1 2 3 .................................................................................................................................. 3. 3 .................................................................................................................................. 4. ..................................................................................................................................

. (2546). 4(.4-6)

4-5 () . : .

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_______. (2549). 4 . :

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4. :

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4. : .

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