Two carts collide on a track. The initial momentum of cart 1 is (+5 mathrm{~kg} cdot mathrm{m}
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Two carts collide on a track. The initial momentum of cart 1 is \(+5 \mathrm{~kg} \cdot \mathrm{m} / \mathrm{s} \hat{\imath}\) and its final momentum is \(-3 \mathrm{~kg} \cdot \mathrm{m} / \mathrm{s} \hat{\imath}\). The initial momentum of cart 2 is \(-4 \mathrm{~kg} \cdot \mathrm{m} / \mathrm{s} \hat{\imath}\) and its final momentum is \(+4 \mathrm{~kg} \cdot \mathrm{m} / \mathrm{s} \hat{\imath}\). Would you say that the track is a low-friction track? Explain.
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