��������������������

! =#$

����� ����� = 9

%

& 9 ) N

& =!%

!g gk

[ '[ '

!

( = )*

m/s =kg m/s2

kg/m

(

g 1 2×

��$ ×k 1 &�#��

��$0�BA��

$ = 34× 6

g 1 2(

( = 12

( ='!

× 2 =2$6

1 =62$

'!

g

$ N ['6 gN ! ×

+ ", ;6)7 = 89:;A=/�

' sin <=

' sin <4c Δ#

g

∆#@4A@B4 = ' sin <4 − ' sin <= ≈ ' tan <4 − ' tan <=

≈ '∆A4∆G

− '∆A=∆G

= '@4A@G4

∆G

G4

<=<4

'

' AG4

G=

G= �� ����� ������

@4A@B4 −

'!@4A@G4 = 0

g

×

@4A@B4

− '∆G∆#

@4A@G4

= 0

���+ ", ;6)7 = 89:;A=/�

Δ#@4A@B4

= '∆G@4A@G4

g

−IJ4 sin KG − JB −IK4 sin KG − JB

@4A@B4 −

'!@4A@G4 = 0

J4 −'! K4 = 0

g G B

A = I sin(KG − JB)

g2N2

2N'= 2N1

JK= 12 = (J

K ='!

����+ ", ;6)7 = 89:;A=/�

g 6 = 1 ��#�=��

1 =12$

'! ! =

'4$41=4

g AA

m [ ×

[

[[

p × [ p

- (

, .) 9 8 ) 0 , .) 9 ( ) 0 , .)= ) 9 )

- 9 8 ) 0 - = ) 9 ) ]

( Q 7 & 9 )7 N ! 9 7

! = &×NQ2

4

Q = ) 00.300×10TU

7.93×10U ×3.14× 0.150×10TU 4 = 7.93×3.14×1.504×10UTY= 5.60×10T[ 9

8.45×10U ×3.14× 0.150×10TU 4 = 8.45×3.14×1.504×10UTY= 5.97×10T[ 9

B

B

- )

1] =62$

'!

g 1= ==

4 ×^._^U.^^

_.`a×=^bc= 0.709×104 = 70.9 Hz

T 14 =4

4 ×^._^U.^^

_.`a×=^bf= 1.42×104 = 142 Hz

g

T 1U =U

4 ×^._^U.^^

_.`a×=^bf= 2.13×104 = 213 Hz

g

g

�!C>4?@.*

][ ) 9

[ ' 4 A

A

2 2 ×52

2 . ]

2 × 33 ]

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