Two Bodies with Masses M₁ and M₂ Are Both Moving

Multiple Choice

Two bodies with masses m₁ and m₂ are both moving east with velocities of magnitudes v₁ and v₂, where v₁ is less than v₂. The magnitude of the velocity of the center of mass of this system of two bodies is

A) less than v₁.
B) equal to v₁.
C) equal to the average of v₁ and v₂.
D) greater than v₁ and less than v₂.
E) greater than v₂.