If I was in the meeting I would've said m1v1 + m2v2 = m1v1' + m2v2'.
Or d = vit + 1/2at^2.
Which reminds me, I need to do my physics vacation homework... Great...
Nope. Common Core made it physics work. The first equation is to solve for two objects crashing into each other but not sticking and the second equation is to solve for how far an object will travel if thrown horizontally off the side of a cliff.