수학동아 - 폴리매스

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함께 풀고 싶은 문제

창의력을 기를 수 있는 수학 문제 또는 퍼즐을 내는 곳입니다.

[창의 퍼즐] 물리(엇 폴리 math인데..)

sincostan 2019.11.25 07:18 조회 528

문제 푼 사람 0명

페이스북 트위터 카카오톡 카카오스토리 네이버블로그 네이버밴드

사다리 두개가 지붕모양의 형태처럼 있다.

이 사다리에 무게가 w인 사람이 올라가서 있고 양쪽 사다리는

줄로 연결되어 있다. 이때 사다리 전체의 길이는 4m이고

사다리의 가장아랫부분에서 사람이 있는 곳까지의 거리는

3m이고 줄로 연결된 곳 까지는 2m이다.두 사다리는 지표면과

경사각 $\Theta$ 로 기울어져 있고 사다리의 질량은 무시한다.

(1)이때 지표면에서 막대에 작용하는 수직항력의 크기를 구하여라.

(2)맨 꼭대기지점에서 왼쪽 사다리가 오른쪽 사다리에 작용하는 힘을 구하라.

이전글 응용

다음글 과학적 현상(창의)

이 문제 어떠셨나요?

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디듀우 Lv.7 2019.11.25 08:06

이건 너무 냅다 정역학 평형 문제 아닙니까...

댓글 작성하기 좋아요0 댓글수1
- sincostan Lv.7 2019.11.25 08:07
  
  네...
  
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