토론:세차 운동

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그림과 설명의 불일치

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팽이뿐만 아니라 특정 축을 중심으로 자전하는 물체는 중력이 작용하는 지구상에서 모두 세차 운동을 할 수 있다. 회전하는 물체(예를 들어 팽이)가 세차 운동을 할 때에, 회전축(팽이의 축)은 물체의 회전 방향과 반대방향으로 돌게 된다. 회전 속도가 세차 운동 동안 일정하고, 작용하는 돌림힘 또한 일정하다면, 축이 이동하는 속도는 돌림힘과 각속도(회전축의 방향)와 계속 직각이 되며, 따라서 회전하는 축이 그리는 자취는 원뿔이 된다.

위에서 굵게 표시한 부분과 그림은 서로 다른 내용입니다. 그림에서는 물체가 회전하는 방향(시계방향)과 세차운동의 궤도(시계방향)이 같게 나타나 있습니다. 그러나 굵게 표시된 부분은 반대방향으로 돈다고 설명하고 있네요. 그림이 맞습니까? 아니면 설명이 맞습니까? --Knight2000 (토론) 2010년 12월 5일 (일) 16:32 (KST)답변

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