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<strong>경상대학교</strong> 물리학과 김현수<br />

9-25<br />

S<br />

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→<br />

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−<br />

바퀴가안정하게굴러가려면<br />

에대입<br />

초기조건<br />

일정<br />

성분별<br />

χ<br />

χ<br />

χ<br />

φ<br />

χ<br />

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&<br />

L<br />

&<br />

&&<br />

L<br />

&<br />

&&<br />

&<br />

&&<br />

17.6 cm/s<br />

0.176 m/s<br />

3<br />

10<br />

0.95<br />

9.8<br />

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3<br />

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9.12<br />

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굴러가는 동전<br />

예제

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