Member for
3 years 2 monthsAge: 14-15
Level: 7
Language: Korean
(ko)
ID: 998508
14/05/2021
Country code: KR
Country: South Korea
Main content: 마찰력과 부력 (1376126)
From worksheet author:
마찰력과 부력 보충문제
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![마찰력과 부력 마찰력과 부력](/sites/default/files/styles/worksheet/public/def_files/2021/5/13/105132343101604237/105132343101604237001.jpg?itok=_fd-0Zdv)
![마찰력과 부력 마찰력과 부력](/sites/default/files/styles/worksheet/public/def_files/2021/5/13/105132343101604237/105132343101604237002.jpg?itok=veAcd-4b)