라그랑이야ㅎㅎ

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2차원 돌림힘 보고싶은 사람들 들어와

마찰계수는 교육과정에 없어서 웬만해선 안 넣었는데 괜찮은것도 있어서 몇 개 엏었움

그건 그냥 마찰계수를 마찰력으로 바꿔도 별 상관없음

몇개는 엄청쉽고 몇개는 좀 생각해야 하는데
앞 문제들이 뒤에 문제들보다 더 어려움

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(수직항력 구하는 걸로 풀어)

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물리할래??