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수학동아 - 폴리매스
함께 풀고 싶은 문제
창의력을 기를 수 있는 수학 문제 또는 퍼즐을 내는 곳입니다.
[창의 퍼즐] 위험한 다리[계산]난이도:OOOOO,노가다 50%
khr519
2020.08.03 00:43
조회 584
끈어질듯 말듯 하고있는 밧줄다리가 있다
이 다리는 1kg짜리 물체를 5분 동안 버틸수 있고(5분 지나면 끈어짐)
무게가 nkg 늘어날 때마다 버티는 시간이 n*n/100 초 줄어든다
다리의 길이가 1km이고 지나갈 물체의 무게와 속력과 길이가 보기와 같다면 다리를 무사히 건널수 있는 것은 어느 것일까?(풀이필수,없으면 부분해결)
(보기)
무게(kg)/속력(km/h)/길이(m)
1.자동차:1000/100/2
2.사람:70/10/0.3
3.오토바이:300/70/1.5
지금 바로
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