A bumper car with mass m1 = 106 kg is moving to the right with a velocity of v1 = 4.4 m/s. A second bumper car with mass m2 = 96 kg is moving to the left with a velocity of v2 = -3 m/s. The two cars have an elastic collision. Assume the surface is frictionless.What is the final velocity of car 1 in the ground (original) reference frame?

So far I have found velocity center of mass=.8831683168
initial velocity of car 1= 3.516831683
I have tried solving it by v2final=Vcm+V1 initial
where I got 4.4 but it's wrong

1 answer

update: I got it, I just had to use v=-3.516831683+.8831683168