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vhang3039
2 năm trước
1.Hai người đi xe máy người thứ nhất đi quãng đường 60km hết 1,5h. Người thứ hai đi quãng đường 34,5km trong 45 phút. a)so sánh chuyển động của 2 người b)Nếu 2 người cùng khởi hành lúc 6h và chuyển động thẳng đều trên đoạn đường AB dài 124,7km . Người thứ nhất đi từ A đến B, người thứ 2 đi từ B ngược về A . Hai người sẽ gặp nhau lúc mấy giờ? Vị trí gặp nhau?
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