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Physics, 26.11.2021 14:00 Doogsterr

Mộtviênđạncókhốilượngm=10kgđangbayv ớivậntốcv=100m/sthìgặpmộtbảngỗdàyvà cắmsâuvàogỗmộtđoạns=4cm. Tìma, Lực cản trung bình của gỗ lên viên đạn. b, Vận tốc của viên đạn sau khi ra khỏi bản gỗ nếu bản gỗ chỉ dày d = 2 cm

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Mộtviênđạncókhốilượngm=10kgđangbayv ớivậntốcv=100m/sthìgặpmộtbảngỗdàyvà cắmsâuvàogỗmộtđoạns=4cm. Tìm...
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