AP Physics C Mechanics Quiz
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FORCE AND TRANSLATIONAL DYNAMICS
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A system of three particles moves such that particle 1 (mass 2m2m) has velocity v1⃗=3i^ m/s\vec{v_1} = 3\hat{i}\text{ m/s}, particle 2 (mass mm) has velocity v2⃗=−2i^ m/s\vec{v_2} = -2\hat{i}\text{ m/s}, and particle 3 (mass 3m3m) has velocity v3⃗=1i^ m/s\vec{v_3} = 1\hat{i}\text{ m/s}. What is the velocity of the center of mass?
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