# Center of mass

At an instant, a $$2 \text{ kg}$$ particle has a velocity of $$4 \text{ m/s}$$ in $$+x$$ direction and a $$3 \text{ kg}$$ particle has a velocity of $$5 \text{ m/s}$$ in $$+y$$ direction. What is the speed of the center of mass of the two-particle system?

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