two automobiles each of mass 1200kg traveling a the same direction. Speed of one automobile is 29.0 m/s and the other is 19 m/s. Regard these automobiles as a system of two particles. a)what is translational energy of center of mass? I found velocity at center of mass which is 24 m/s and plugged it in K=mv^2 and ended up with 345600 J. b) what is the total kinetic energy? (0.5*1200*29^2)+(0.5*1200*19^2)=721200 c) what is the kinetic energy in a reference frame moving with the center of mass? Im guessing that you subtract part b with part a.