Physics, 11.10.2021 21:20, Will1119

Một đoàn tàu đang chạy với vận tốc v 4 (km/h) thì đi vào tìột đoạn đường cong dài 2(km) bán kính 4000(m ) tàu chạy nhanh khoảng thời gian 1,5 phút. Tính vận tốc dài, gia tốc tiếp tuyến, gia tốc pháp tuyệt tà tốc loài phân chia đoàn tàu ở cuối quãng đường đó

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Một đoàn tàu đang chạy với vận tốc v 4 (km/h) thì đi vào tìột đoạn đường cong dài 2(km) bán kính 400...