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Physics, 10.10.2021 23:50 piyonax

một người đi xe máy chuyển độnh theo ba giai đoạn, giai đoạn 1 chuyển đêu so với vận tốc V1=24km/h trong 4 km đầu tiên, giai đoạn 2 chuyển động biến đổi VTBTV2=40km/h trong thời gian 60 phút. Giai đoạn 3 chuyển động đầu tiên quãng đường 8km trong thời gian 10 phút. Tính vận tốc trung bình trên cả 3 giai đoạn

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một người đi xe máy chuyển độnh theo ba giai đoạn, giai đoạn 1 chuyển đêu so với vận tốc V1=24km/h t...
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