:

:

1 ()( SHM, simple harmonic oscillation)

F=x

xdt

xdmF 22

(1)

k /m =o2

02022

xdt

xd (2)

)cos( 00 txx (3)

xoT= 2 /o

()( damped oscillation )

mdx / dt

dtdxmxF

dtxdm 2

2

(4)

d x / d t m

2

d/dtvi

v

() :

Focost

tFdtdxmxF

dtxdm cos02

2

(9)

mtFxdtdx

dtxd /cos0

202

2

(10)

(1)

x = xo cos(t) (11)

22222

0

00

)(

m

Fx (12)

22

0

1tan

(13)

(3)Fo/k

R(12)#1

2

3

#1

o

mo

oR

xoR

2/220 R (14)

dtdxmtrxxF )cos(

trdtdxmx cos2

r cost :

Datastudio

: ()

1.#2 #3(K)

2.5

3.

() 1.

2 2.

10cm

3.5

4.T1/2(8)

5.?

6.v- t

7.456 ()

#2

#3 ,

5

1.4 2.DCfo 3. () 4.(f1/3fo)ffo(f2fo) 5. 6.3 R 7.(13) 8.R()d?() ? 9.(transient effect)

()/o

: 1.

?

2.?

3.(() )

6 4.Transient effect (5 )?

(11)xo??

6

:

1. J. B. Marion: Classical Dynamics of Particles & Systerns 2nd ed. (1985 ) 3- 2p.93. 3-5, p.101, 4-2, p.118( 3rd ed., 3-5, p.106, 3-6 ,p. 1l4 )

2. D. Halliday & R. Resnick : Fundamentals of Physics, extended 3rd ed. ( John Wiley & Sons, Inc., 1988 )14-8, p.318 14-9, p.320

3.(7610), 6-9, p.387, 6-10, p.392

4. M. Alonso E. J. FinnFundamental University Physics ( Addison Wesley Publishing Co., 1967), 12-12 ~ 12-13, p.374~p.380

5. 20 ( 77 )p.88