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Biology, 24.10.2021 01:30 pthalia

Xe hàng 200kg đang có vận tốc 1m/s dài theo phương ngang. Bỏ qua ma sát, a. Hai người có khối lượng A là 50 kg và B là 60 kgnhảy vào xe với vận tốc 4 m/s theo chiều chuyển động của xe. Tính vận tốc xe khi đó

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Xe hàng 200kg đang có vận tốc 1m/s dài theo phương ngang. Bỏ qua ma sát, a. Hai người có khối lượng...
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