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A \( 3.0-\mathrm{kg} \) cart moving to the right with a speed of \( 1.0 \mathrm{~m} / \mathrm{s} \) has a head-on collision with a \( 5.0-\mathrm{kg} \) cart that is initially moving to the left with a speed of \( 2.0 \mathrm{~m} / \mathrm{s} \). After the collision, the \( 3.0-\mathrm{kg} \) cart is moving to the left with a speed of \( 1.0 \mathrm{~m} / \mathrm{s} \). What is the final velocity of the \( 5.0-\mathrm{kg} \) cart?
(A) zero m/s
(B) \( 0.80 \mathrm{~m} / \mathrm{s} \) to the right
(C) \( 0.80 \mathrm{~m} / \mathrm{s} \) to the left
(D) \( 2.0 \mathrm{~m} / \mathrm{s} \) to the right
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