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Physics, 09.09.2021 05:50 emopandabogard8712

1 xe chuyển động thẳng k đổi chiều. xe chạy 30km đầu tiên hết thời gian là 36 phút.30km tiếp theo xe đi hết thời gian là 24 phút, tính tốc độ trung bình của xe trên cả quãng đường

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1 xe chuyển động thẳng k đổi chiều. xe chạy 30km đầu tiên hết thời gian là 36 phút.30km tiếp theo xe...
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