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Function: get_footer
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Function: require_once
수학동아 - 폴리매스
함께 풀고 싶은 문제
나도 수학쌤 문장제 문제를 변형해 문제를 내는 곳입니다.
[문장제 문제&개념응용] 충돌 후 공의 속도 변화 비교
리퍼
2021.03.07 18:02
조회 385
* 이 문제는 과학문제이긴 하나 공식에 대입만 하면 풀 수 있는 아주 간단한 뉴턴 역학 문제이기 때문에 안심하고 푸셔도 됩니다.
두 공이 있다.
왼쪽에 있는 공은 질량이 1kg이며 오른쪽을 향해 2m/s의 속도로 운동하고 있다.
왼쪽에 있는 공은 질량이 2kg이며 오른쪽을 향해 1m/s의 속도로 운동하고 있다.
운동량이 보존된다고 할 때 오른쪽 공의 속도을 v1, 운동에너지가 보존된다고 할 때 오른쪽 공의 속도을 v2라고 할 때
v1과 v2의 대소관계를 비교하시오. 여기서, 반발 계수는 e라고 두자. (단, 공기저항과 마찰은 무시한다.)
지금 바로
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