Saya mau tau where dari Moméntum. Jelaskan dalam bahasa sunda

is the momentum of the particle system

is the mass of object i

the vector velocity of object i

is the number of objects in the system

It can be shown that, in the center of mass frame the momentum of a system is zero. Additionally, the momentum in a frame of reference that is moving at a velocity vcm with respect to that frame is simply: