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Cho quả bóng đỏ có khối lượng 153g đang chuyển động với vận tốc 54km/h thì va chạm xuyên tâm với quả bóng xanh nặng 319g đang chuyển động với vận tốc 18 km/h. Hãy xác định vận tốc của cả 2 quả bóng ngay sau khi va chạm trong các trường hợp sau:
a. Hai quả bóng chuyển động cùng chiều.
b. Hai quả bóng chuyển động ngược chiều.
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Cho quả bóng đỏ có khối lượng 153g đang chuyển động với vận tốc 54km/h thì va chạm xuyên tâm với quả...
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