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**1. Homework Statement**

A 61.9kg object moving to the right at 43.3 cm/s overtakes and collides elastically with a second 44.9kg object moving in the same direction at 26.9cm/s

Find the velocity of the second object after the collision.

**2. Homework Equations**

My hw says its in the chapter and section with "velocity of the center of mass" and "momentum in terms of velocity of CM" But I think its wrong and I should be looking at the elastic collision chapter.

**3. The Attempt at a Solution**

I tried doing conservation of momentum but I don't know the velocity of object 1 after collision.

I tried using the elastic collision equations but those use one mass having a velocity of 0.

I pretty much confused where to start.