3fb8c32fffd711ab6fb8d38a4683746f7dca95c48a5f58c77bf954032f76074c3f33f90677759d6b2296e09bdb

3fb8c32fffd711ab6fb8d38a4783746fa4f4d73fae41963ed51b1abc4a090b942455fef155186caf99624e0518

여기서 F=(2m1m2/(m1+m2))g 가 어캐 나오는거임?

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