(A) 5m/s, 1m/s
(B) 3m/s, 3m/s
(C) 6m/s, 1m/s
(D) 4m/s, 2m/s
(A) 5m/s, 1m/s
(B) 3m/s, 3m/s
(C) 6m/s, 1m/s
(D) 4m/s, 2m/s
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