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luonghoang
2 năm trước
Từ đỉnh tháp ở độ cao 500m so với mặt đất lần lượt thả rơi tự do không vận tốc ban đầu các viên bi sau những khoảng thời gian liên tiếp bằng nhau. Khi viên bi thứ nhất chạm đất thì viên bi thứ 11 bắt đầu rơi. Tìm khoảng cách lớn nhất giữa 2 viên bi liên tiếp trong quá trình rơi. Lấy g=10m/s^2
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