Similarly, one can also define the velocity of the center of mass of the system, in terms of the individual velocities, →vi, of the particles in the system: \[\begin{aligned} \vec v_{CM} &= \...Similarly, one can also define the velocity of the center of mass of the system, in terms of the individual velocities, →vi, of the particles in the system: →vCM=1M∑imi→vi Finally, one can define the acceleration of the center of mass of the system, in terms of the individual accelerations, →ai, of the particles in the system: →aCM=1M∑imi→ai
