When calculating for final displacement, what is the difference between these two equations?
1. x(f) = x(o) + V(o)t + at2 / 2
2. x(f) = x(o) + (v+v(o)) / 2
x(f) = final displacement, x(o) = original displacement, v(o) = original velocity.
It's my fourth day taking AP physics, and I need help.. thanks!