Serway & Jewett — Motion in One Dimension: Problem 22

In the particle under constant acceleration model, we identify the variables and parameters \(v_{xi}\), \(v_{xf}\), \(a_x\), \(t\), and \(x_f - x_i\). Of the equations in the model, Equations 2.13–2.17, the first does not involve \(x_f - x_i\), the second and third do not contain \(a_x\), the fourth omits \(v_{xf}\), and the last leaves out \(t\). So, to complete the set, there should be an equation not involving \(v_{xi}\). Derive it from the others.