Question: The drawing shows three particles that are moving with different velocities. Two of the particles have mass m, and the third has a mass 2m.

The drawing shows three particles that are moving with different velocities. Two of the particles have mass m, and the third has a mass 2m. At the instant shown, the center of mass (cm) of the three particles is at the coordinate origin. What is the velocity υcm (magnitude and direction) of the center of mass?

m +4.0 m/s -8.0 m/s ст cm = ? +6.0 m/s 2m E

m +4.0 m/s -8.0 m/s cm = ? +6.0 m/s 2m E

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