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Dt2t52:1
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- 2,PQ,Q


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- 2 d x 2x =0 dt 2 + x = A cos ( ...


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___ ...0 ( D) 12 ,, ...


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___ 1. x ? A ...m, , L...


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___ ...2 1. ,0.32N/m, 0.02kg,...


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___ 1. 2....kA 2 , ,...


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2014.3.20 1.,...4 cm, 100cm 47-2-6,AB ,...


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___ ...4 E1 2 3 x ...


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1___1.(2010 ...1s 2cm ) :ABC 2,3cm, 2s...


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(2007)___ 1. ...k2 ? ? 2 m k2 2., ...


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(2007)___ ..., , , ,A,...


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1 - 1 --


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__(42) ... 0.1kg X=0.1 ...


2006.doc

(2006.4.20) 1....kx d2x/dt2+?2x=0 x=Acos(?t+?0) ?=(k/m...


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- II 1. mk, ?...


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- ? 1:,, ,O,( C ) ? A.AO...

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