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수학동아 - 폴리매스
함께 풀고 싶은 문제
창의력을 기를 수 있는 수학 문제 또는 퍼즐을 내는 곳입니다.
[창의 퍼즐] [물리]수학보다 물리를 더 좋아하는 여백패르마
여백 패르마
2020.08.03 05:05
조회 561
경사각이 
인 경사면을 따라 직육면체 모양의 상자가 미끄러지면서 내려가고 있다. 상자안에는 단진자가 설치되어 있다. (단진자란, 줄에 질량이 m인 물체가 달려있는 장치를 의미한다.)
상자가 내려오는 동안 줄은 상자의 앞면에 평행한 직선과 
의 각도를 유지하면서 움직이고 있다 이때, 상자와 경사면 사이의 운동마찰계수를 구하시오.
지금 바로
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