AP Physics C Mechanics Quiz
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Two ice skaters initially at rest on frictionless ice push off each other: skater A (60 kg60\,\text{kg}) and skater B (40 kg40\,\text{kg}). Afterward, A moves at v⃗A=−2.0 m/s ı^\vec v_A=-2.0\,\text{m/s}\,\hat\imath. With negligible external forces so total momentum remains 0⃗\vec 0, calculate skater B's velocity.
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