The equation v – = v 0 + v 2 v – = v 0 + v 2 is reflects the fact that when acceleration is constant, v – is just the simple average of the initial and final velocities.
the equation v-=v0+v2-v-=v0+v2 is reflects the fact that when acceleration is constant,v- is just the simple areragevof the initial and final velocities
