I was doing some practice problems to become more familiar with the Center of Mass Velocity and I came across this one from (Noted in the picture) Engineering at Illinois, that relates the velocity of the center of mass in both the x and y direction, however I don't quit understand the answer. VCM = (M1V1 + M2V2)/ Mtotal Since this is the case VCM should equal 2.4, but the question asked for the velocity in the x and y direction Since only one object is moving in the x-direction shouldn't that be the VCM for the x-direction?? Why would VCM (x-direction) = Momentum in the x-direction? How would one go about calculating VCM for individual dimensions? Thanks!