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Function: driver
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Function: model
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Line: 559
Function: get_footer
File: /volume1/web/PhpstormProjects/www_polymath_co_kr/index.php
Line: 315
Function: require_once
수학동아 - 폴리매스
함께 풀고 싶은 문제
창의력을 기를 수 있는 수학 문제 또는 퍼즐을 내는 곳입니다.
[창의 퍼즐] [대수][무한히 많은 수의 합] 대단한 공
원파
2020.09.10 09:46
조회 485
원형파이는 위대한 공을 던진 뒤 대단한 공을 던집니다.
대단한 공은 처음 45도 각도로 평평한 바닥에 던지며, 바닥에 닿을 때까지 16초가 걸립니다.
언제나 대단한 공은 바닥에 닿으면 -45도 각도로 같은 시간만큼 튀어 오릅니다.
바닥에 닿고 나서 같은 시간만큼 튀어 오르는 작업을 '대단한 일'이라 합니다.
한 대단한 일을 마친 후에는 다음 대단한 일에서 공은 45도 각도로 이전 시간의 절반이 걸립니다.
이렇게 계속 무한히 대단한 일을 합니다.
그렇다면 얼마나 긴 시간이 걸릴지 구하고 자세히 서술해주세요.
지금 바로
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